From patchwork Fri May 8 06:33:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akash Asthana X-Patchwork-Id: 11535691 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AA57C1668 for ; Fri, 8 May 2020 06:34:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8A894208D6 for ; Fri, 8 May 2020 06:34:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="uGibO7SR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727088AbgEHGeb (ORCPT ); Fri, 8 May 2020 02:34:31 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:40100 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727029AbgEHGea (ORCPT ); Fri, 8 May 2020 02:34:30 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1588919670; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=5zzFY8a5o5xoTVymhS6AdB/RQlWaYTRD4Hi7Ma7muT0=; b=uGibO7SRKJQ1X4DIbh170l7i6MjlgbP+cLr01uZTPdIfmBgBhFTKTZrfiu9N/A5MZhrunapE Zvl4cr5P91F723U5DQWI1u4o89QJk232Lh6k6bM0pkFEUKhZnFQgfHZ+HFwu3Bu8L7yagF21 /zwsT9ZG1cl893nATKnwLq/KCwY= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyIzNzdmZSIsICJsaW51eC1zcGlAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5eb4fd5e.7fd361b55228-smtp-out-n02; Fri, 08 May 2020 06:34:06 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id D0D9EC433BA; Fri, 8 May 2020 06:34:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=ham autolearn_force=no version=3.4.0 Received: from akashast-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: akashast) by smtp.codeaurora.org (Postfix) with ESMTPSA id B2BC1C433D2; Fri, 8 May 2020 06:33:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org B2BC1C433D2 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=akashast@codeaurora.org From: Akash Asthana To: gregkh@linuxfoundation.org, agross@kernel.org, bjorn.andersson@linaro.org, wsa@the-dreams.de, broonie@kernel.org, mark.rutland@arm.com, robh+dt@kernel.org Cc: linux-i2c@vger.kernel.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, swboyd@chromium.org, mgautam@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, mka@chromium.org, dianders@chromium.org, evgreen@chromium.org, georgi.djakov@linaro.org, Akash Asthana Subject: [PATCH V5 1/7] soc: qcom: geni: Support for ICC voting Date: Fri, 8 May 2020 12:03:33 +0530 Message-Id: <1588919619-21355-2-git-send-email-akashast@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> References: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Add necessary macros and structure variables to support ICC BW voting from individual SE drivers. Signed-off-by: Akash Asthana Reviewed-by: Matthias Kaehlcke --- Changes in V2: - As per Bjorn's comment dropped enums for ICC paths, given the three paths individual members Changes in V3: - Add geni_icc_get, geni_icc_vote_on and geni_icc_vote_off as helper API. - Add geni_icc_path structure in common header Changes in V4: - As per Bjorn's comment print error message in geni_icc_get if return value is not -EPROBE_DEFER. - As per Bjorn's comment remove NULL on path before calling icc_set_bw API. - As per Bjorn's comment drop __func__ print. - As per Matthias's comment, make ICC path a array instead of individual member entry in geni_se struct. Note: I have ignored below check patch suggestion because it was throwing compilation error as 'icc_ddr' is not compile time comstant. WARNING: char * array declaration might be better as static const - FILE: drivers/soc/qcom/qcom-geni-se.c:726: - const char *icc_names[] = {"qup-core", "qup-config", icc_ddr}; Changes in V5: - As per Matthias's comment defined enums for ICC paths. - Integrate icc_enable/disable with power on/off call for driver. - As per Matthias's comment added icc_path_names array to print icc path name in failure case. - As per Georgi's suggestion assume peak_bw = avg_bw if not mentioned. drivers/soc/qcom/qcom-geni-se.c | 92 +++++++++++++++++++++++++++++++++++++++++ include/linux/qcom-geni-se.h | 42 +++++++++++++++++++ 2 files changed, 134 insertions(+) diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c index 7d622ea..63403bf 100644 --- a/drivers/soc/qcom/qcom-geni-se.c +++ b/drivers/soc/qcom/qcom-geni-se.c @@ -92,6 +92,9 @@ struct geni_wrapper { struct clk_bulk_data ahb_clks[NUM_AHB_CLKS]; }; +static const char * const icc_path_names[] = {"qup-core", "qup-config", + "qup-memory"}; + #define QUP_HW_VER_REG 0x4 /* Common SE registers */ @@ -720,6 +723,95 @@ void geni_se_rx_dma_unprep(struct geni_se *se, dma_addr_t iova, size_t len) } EXPORT_SYMBOL(geni_se_rx_dma_unprep); +int geni_icc_get(struct geni_se *se, const char *icc_ddr) +{ + int i, icc_err; + const char *icc_names[] = {"qup-core", "qup-config", icc_ddr}; + + for (i = 0; i < ARRAY_SIZE(se->icc_paths); i++) { + if (!icc_names[i]) + continue; + + se->icc_paths[i].path = devm_of_icc_get(se->dev, icc_names[i]); + if (IS_ERR(se->icc_paths[i].path)) + goto icc_get_failure; + } + + return 0; + +icc_get_failure: + icc_err = PTR_ERR(se->icc_paths[i].path); + if (icc_err != -EPROBE_DEFER) + dev_err_ratelimited(se->dev, "Failed to get ICC path:%s, ret:%d\n", + icc_names[i], icc_err); + return icc_err; + +} +EXPORT_SYMBOL(geni_icc_get); + +void geni_icc_bw_init(struct geni_icc_path *icc_paths, unsigned int avg_bw, + unsigned int peak_bw) +{ + if (!peak_bw) + peak_bw = avg_bw; + icc_paths->avg_bw = avg_bw; + icc_paths->peak_bw = peak_bw; +} +EXPORT_SYMBOL(geni_icc_bw_init); + +int geni_icc_set_bw(struct geni_se *se) +{ + int i, ret; + + for (i = 0; i < ARRAY_SIZE(se->icc_paths); i++) { + ret = icc_set_bw(se->icc_paths[i].path, + se->icc_paths[i].avg_bw, se->icc_paths[i].peak_bw); + if (ret) { + dev_err_ratelimited(se->dev, "ICC BW voting failed on path:%s, ret:%d\n", + icc_path_names[i], ret); + return ret; + } + } + + return 0; +} +EXPORT_SYMBOL(geni_icc_set_bw); + +/* To do: Replace this by icc_bulk_enable once it's implemented in ICC core */ +int geni_icc_enable(struct geni_se *se) +{ + int i, ret; + + for (i = 0; i < ARRAY_SIZE(se->icc_paths); i++) { + ret = icc_enable(se->icc_paths[i].path); + if (ret) { + dev_err_ratelimited(se->dev, "ICC enable failed on path:%s, ret:%d\n", + icc_path_names[i], ret); + return ret; + } + } + + return 0; +} +EXPORT_SYMBOL(geni_icc_enable); + +int geni_icc_disable(struct geni_se *se) +{ + int i, ret; + + for (i = 0; i < ARRAY_SIZE(se->icc_paths); i++) { + ret = icc_disable(se->icc_paths[i].path); + if (ret) { + dev_err_ratelimited(se->dev, "ICC disable failed on path:%s, ret:%d\n", + icc_path_names[i], ret); + return ret; + } + } + + return 0; +} +EXPORT_SYMBOL(geni_icc_disable); + static int geni_se_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; diff --git a/include/linux/qcom-geni-se.h b/include/linux/qcom-geni-se.h index dd46494..7afa08d 100644 --- a/include/linux/qcom-geni-se.h +++ b/include/linux/qcom-geni-se.h @@ -6,6 +6,8 @@ #ifndef _LINUX_QCOM_GENI_SE #define _LINUX_QCOM_GENI_SE +#include + /* Transfer mode supported by GENI Serial Engines */ enum geni_se_xfer_mode { GENI_SE_INVALID, @@ -25,6 +27,18 @@ enum geni_se_protocol_type { struct geni_wrapper; struct clk; +enum geni_icc_path_index { + GENI_TO_CORE, + CPU_TO_GENI, + GENI_TO_DDR +}; + +struct geni_icc_path { + struct icc_path *path; + unsigned int avg_bw; + unsigned int peak_bw; +}; + /** * struct geni_se - GENI Serial Engine * @base: Base Address of the Serial Engine's register block @@ -33,6 +47,7 @@ struct clk; * @clk: Handle to the core serial engine clock * @num_clk_levels: Number of valid clock levels in clk_perf_tbl * @clk_perf_tbl: Table of clock frequency input to serial engine clock + * @icc_paths: Array of ICC paths for SE */ struct geni_se { void __iomem *base; @@ -41,6 +56,7 @@ struct geni_se { struct clk *clk; unsigned int num_clk_levels; unsigned long *clk_perf_tbl; + struct geni_icc_path icc_paths[3]; }; /* Common SE registers */ @@ -229,6 +245,21 @@ struct geni_se { #define GENI_SE_VERSION_MINOR(ver) ((ver & HW_VER_MINOR_MASK) >> HW_VER_MINOR_SHFT) #define GENI_SE_VERSION_STEP(ver) (ver & HW_VER_STEP_MASK) +/* + * Define bandwidth thresholds that cause the underlying Core 2X interconnect + * clock to run at the named frequency. These baseline values are recommended + * by the hardware team, and are not dynamically scaled with GENI bandwidth + * beyond basic on/off. + */ +#define CORE_2X_19_2_MHZ 960 +#define CORE_2X_50_MHZ 2500 +#define CORE_2X_100_MHZ 5000 +#define CORE_2X_150_MHZ 7500 +#define CORE_2X_200_MHZ 10000 +#define CORE_2X_236_MHZ 16383 + +#define GENI_DEFAULT_BW Bps_to_icc(1000) + #if IS_ENABLED(CONFIG_QCOM_GENI_SE) u32 geni_se_get_qup_hw_version(struct geni_se *se); @@ -416,5 +447,16 @@ int geni_se_rx_dma_prep(struct geni_se *se, void *buf, size_t len, void geni_se_tx_dma_unprep(struct geni_se *se, dma_addr_t iova, size_t len); void geni_se_rx_dma_unprep(struct geni_se *se, dma_addr_t iova, size_t len); + +int geni_icc_get(struct geni_se *se, const char *icc_ddr); + +int geni_icc_set_bw(struct geni_se *se); + +void geni_icc_bw_init(struct geni_icc_path *icc_paths, unsigned int avg_bw, + unsigned int peak_bw); + +int geni_icc_enable(struct geni_se *se); + +int geni_icc_disable(struct geni_se *se); #endif #endif From patchwork Fri May 8 06:33:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akash Asthana X-Patchwork-Id: 11535679 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1C22992A for ; Fri, 8 May 2020 06:34:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F2B7020870 for ; Fri, 8 May 2020 06:34:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="JJABjF+r" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726742AbgEHGeR (ORCPT ); Fri, 8 May 2020 02:34:17 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:40100 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726009AbgEHGeR (ORCPT ); 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Fri, 8 May 2020 06:34:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 22B82C433F2 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=akashast@codeaurora.org From: Akash Asthana To: gregkh@linuxfoundation.org, agross@kernel.org, bjorn.andersson@linaro.org, wsa@the-dreams.de, broonie@kernel.org, mark.rutland@arm.com, robh+dt@kernel.org Cc: linux-i2c@vger.kernel.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, swboyd@chromium.org, mgautam@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, mka@chromium.org, dianders@chromium.org, evgreen@chromium.org, georgi.djakov@linaro.org, Akash Asthana Subject: [PATCH V5 2/7] soc: qcom-geni-se: Add interconnect support to fix earlycon crash Date: Fri, 8 May 2020 12:03:34 +0530 Message-Id: <1588919619-21355-3-git-send-email-akashast@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> References: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org QUP core clock is shared among all the SE drivers present on particular QUP wrapper, the system will reset(unclocked access) if earlycon used after QUP core clock is put to 0 from other SE drivers before real console comes up. As earlycon can't vote for it's QUP core need, to fix this add ICC support to common/QUP wrapper driver and put vote for QUP core from probe on behalf of earlycon and remove vote during earlycon exit call. Signed-off-by: Akash Asthana Reported-by: Matthias Kaehlcke --- Change in V3: - Add geni_remove_earlycon_icc_vote API that will be used by earlycon exit function to remove ICC vote for earlyconsole. - Remove suspend/resume hook for geni-se driver as we are no longer removing earlyconsole ICC vote from system suspend, we are removing from earlycon exit. Change in V4: - As per Matthias comment make 'earlycon_wrapper' as static structure. Changes in V5: - Vote for core path only after checking whether "qcom_geni" earlycon is actually present or not by traversing over structure "console_drivers". drivers/soc/qcom/qcom-geni-se.c | 63 +++++++++++++++++++++++++++++++++++ drivers/tty/serial/qcom_geni_serial.c | 7 ++++ include/linux/qcom-geni-se.h | 2 ++ 3 files changed, 72 insertions(+) diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c index 63403bf..66fe6f2 100644 --- a/drivers/soc/qcom/qcom-geni-se.c +++ b/drivers/soc/qcom/qcom-geni-se.c @@ -3,6 +3,7 @@ #include #include +#include #include #include #include @@ -90,11 +91,14 @@ struct geni_wrapper { struct device *dev; void __iomem *base; struct clk_bulk_data ahb_clks[NUM_AHB_CLKS]; + struct geni_icc_path to_core; }; static const char * const icc_path_names[] = {"qup-core", "qup-config", "qup-memory"}; +static struct geni_wrapper *earlycon_wrapper; + #define QUP_HW_VER_REG 0x4 /* Common SE registers */ @@ -812,11 +816,33 @@ int geni_icc_disable(struct geni_se *se) } EXPORT_SYMBOL(geni_icc_disable); +void geni_remove_earlycon_icc_vote(void) +{ + struct geni_wrapper *wrapper = earlycon_wrapper; + struct device_node *parent = of_get_next_parent(wrapper->dev->of_node); + struct device_node *child; + + for_each_child_of_node(parent, child) { + if (of_device_is_compatible(child, "qcom,geni-se-qup")) { + wrapper = platform_get_drvdata(of_find_device_by_node( + child)); + icc_put(wrapper->to_core.path); + wrapper->to_core.path = NULL; + } + } + of_node_put(parent); + + earlycon_wrapper = NULL; +} +EXPORT_SYMBOL(geni_remove_earlycon_icc_vote); + static int geni_se_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct resource *res; struct geni_wrapper *wrapper; + struct console *bcon; + int earlycon_present = 0; int ret; wrapper = devm_kzalloc(dev, sizeof(*wrapper), GFP_KERNEL); @@ -839,6 +865,43 @@ static int geni_se_probe(struct platform_device *pdev) } } +#ifdef CONFIG_SERIAL_EARLYCON + if (console_drivers) + for_each_console(bcon) + if (!strcmp(bcon->name, "qcom_geni")) { + earlycon_present = 1; + break; + } + if (!earlycon_present) + goto exit; + + wrapper->to_core.path = devm_of_icc_get(dev, "qup-core"); + if (IS_ERR(wrapper->to_core.path)) + return PTR_ERR(wrapper->to_core.path); + /* + * Put minmal BW request on core clocks on behalf of early console. + * The vote will be removed earlycon exit function. + * + * Note: We are putting vote on each QUP wrapper instead only to which + * earlycon is connected because QUP core clock of different wrapper + * share same voltage domain. If core1 is put to 0, then core2 will + * also run at 0, if not voted. Default ICC vote will be removed ASA + * we touch any of the core clock. + * core1 = core2 = max(core1, core2) + */ + ret = icc_set_bw(wrapper->to_core.path, GENI_DEFAULT_BW, + GENI_DEFAULT_BW); + if (ret) { + dev_err(&pdev->dev, "%s: ICC BW voting failed for core\n", + __func__); + return ret; + } + + if (of_get_compatible_child(pdev->dev.of_node, "qcom,geni-debug-uart")) + earlycon_wrapper = wrapper; + of_node_put(pdev->dev.of_node); +#endif +exit: dev_set_drvdata(dev, wrapper); dev_dbg(dev, "GENI SE Driver probed\n"); return devm_of_platform_populate(dev); diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c index 6119090..8c5d97c 100644 --- a/drivers/tty/serial/qcom_geni_serial.c +++ b/drivers/tty/serial/qcom_geni_serial.c @@ -1090,6 +1090,12 @@ static void qcom_geni_serial_earlycon_write(struct console *con, __qcom_geni_serial_console_write(&dev->port, s, n); } +static int qcom_geni_serial_earlycon_exit(struct console *con) +{ + geni_remove_earlycon_icc_vote(); + return 0; +} + static int __init qcom_geni_serial_earlycon_setup(struct earlycon_device *dev, const char *opt) { @@ -1135,6 +1141,7 @@ static int __init qcom_geni_serial_earlycon_setup(struct earlycon_device *dev, writel(stop_bit_len, uport->membase + SE_UART_TX_STOP_BIT_LEN); dev->con->write = qcom_geni_serial_earlycon_write; + dev->con->exit = qcom_geni_serial_earlycon_exit; dev->con->setup = NULL; return 0; } diff --git a/include/linux/qcom-geni-se.h b/include/linux/qcom-geni-se.h index 7afa08d..51e9e9b 100644 --- a/include/linux/qcom-geni-se.h +++ b/include/linux/qcom-geni-se.h @@ -458,5 +458,7 @@ void geni_icc_bw_init(struct geni_icc_path *icc_paths, unsigned int avg_bw, int geni_icc_enable(struct geni_se *se); int geni_icc_disable(struct geni_se *se); + +void geni_remove_earlycon_icc_vote(void); #endif #endif From patchwork Fri May 8 06:33:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akash Asthana X-Patchwork-Id: 11535685 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 443EC1862 for ; 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spf=none smtp.mailfrom=akashast@codeaurora.org From: Akash Asthana To: gregkh@linuxfoundation.org, agross@kernel.org, bjorn.andersson@linaro.org, wsa@the-dreams.de, broonie@kernel.org, mark.rutland@arm.com, robh+dt@kernel.org Cc: linux-i2c@vger.kernel.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, swboyd@chromium.org, mgautam@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, mka@chromium.org, dianders@chromium.org, evgreen@chromium.org, georgi.djakov@linaro.org, Akash Asthana Subject: [PATCH V5 3/7] i2c: i2c-qcom-geni: Add interconnect support Date: Fri, 8 May 2020 12:03:35 +0530 Message-Id: <1588919619-21355-4-git-send-email-akashast@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> References: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Get the interconnect paths for I2C based Serial Engine device and vote according to the bus speed of the driver. Signed-off-by: Akash Asthana Reviewed-by: Matthias Kaehlcke Acked-by: Wolfram Sang --- Changes in V2: - As per Bjorn's comment, removed se == NULL check from geni_i2c_icc_get - As per Bjorn's comment, removed code to set se->icc_path* to NULL in failure - As per Bjorn's comment, introduced and using devm_of_icc_get API for getting path handle - As per Matthias comment, added error handling for icc_set_bw call Changes in V3: - As per Matthias comment, use common library APIs defined in geni-se driver for ICC functionality. Changes in V4: - Move peak_bw guess as twice of avg_bw if nothing mentioned explicitly to ICC core. Changes in V5: - Use icc_enable/disable in power on/off call. drivers/i2c/busses/i2c-qcom-geni.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index 18d1e4f..f2e786d 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -557,6 +557,25 @@ static int geni_i2c_probe(struct platform_device *pdev) gi2c->adap.dev.of_node = dev->of_node; strlcpy(gi2c->adap.name, "Geni-I2C", sizeof(gi2c->adap.name)); + ret = geni_icc_get(&gi2c->se, "qup-memory"); + if (ret) + return ret; + /* + * Set the bus quota for core and cpu to a reasonable value for + * register access. + * Set quota for DDR based on bus speed. + */ + geni_icc_bw_init(&gi2c->se.icc_paths[GENI_TO_CORE], GENI_DEFAULT_BW, + 0); + geni_icc_bw_init(&gi2c->se.icc_paths[CPU_TO_GENI], GENI_DEFAULT_BW, + 0); + geni_icc_bw_init(&gi2c->se.icc_paths[GENI_TO_DDR], + Bps_to_icc(gi2c->clk_freq_out), 0); + + ret = geni_icc_set_bw(&gi2c->se); + if (ret) + return ret; + ret = geni_se_resources_on(&gi2c->se); if (ret) { dev_err(dev, "Error turning on resources %d\n", ret); @@ -579,6 +598,10 @@ static int geni_i2c_probe(struct platform_device *pdev) return ret; } + ret = geni_icc_disable(&gi2c->se); + if (ret) + return ret; + dev_dbg(dev, "i2c fifo/se-dma mode. fifo depth:%d\n", tx_depth); gi2c->suspended = 1; @@ -623,7 +646,7 @@ static int __maybe_unused geni_i2c_runtime_suspend(struct device *dev) gi2c->suspended = 1; } - return 0; + return geni_icc_disable(&gi2c->se); } static int __maybe_unused geni_i2c_runtime_resume(struct device *dev) @@ -631,6 +654,10 @@ static int __maybe_unused geni_i2c_runtime_resume(struct device *dev) int ret; struct geni_i2c_dev *gi2c = dev_get_drvdata(dev); + ret = geni_icc_enable(&gi2c->se); + if (ret) + return ret; + ret = geni_se_resources_on(&gi2c->se); if (ret) return ret; From patchwork Fri May 8 06:33:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akash Asthana X-Patchwork-Id: 11535705 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0003F92A for ; 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spf=none smtp.mailfrom=akashast@codeaurora.org From: Akash Asthana To: gregkh@linuxfoundation.org, agross@kernel.org, bjorn.andersson@linaro.org, wsa@the-dreams.de, broonie@kernel.org, mark.rutland@arm.com, robh+dt@kernel.org Cc: linux-i2c@vger.kernel.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, swboyd@chromium.org, mgautam@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, mka@chromium.org, dianders@chromium.org, evgreen@chromium.org, georgi.djakov@linaro.org, Akash Asthana Subject: [PATCH V5 4/7] spi: spi-geni-qcom: Add interconnect support Date: Fri, 8 May 2020 12:03:36 +0530 Message-Id: <1588919619-21355-5-git-send-email-akashast@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> References: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Get the interconnect paths for SPI based Serial Engine device and vote according to the current bus speed of the driver. Signed-off-by: Akash Asthana Acked-by: Mark Brown Reviewed-by: Matthias Kaehlcke --- Changes in V2: - As per Bjorn's comment, removed se == NULL check from geni_spi_icc_get - As per Bjorn's comment, removed code to set se->icc_path* to NULL in failure - As per Bjorn's comment, introduced and using devm_of_icc_get API for getting path handle - As per Matthias comment, added error handling for icc_set_bw call Changes in V3: - As per Matthias's comment, use helper ICC function from geni-se driver. Changes in V4: - Move peak_bw guess as twice of avg_bw if nothing mentioned explicitly to ICC core. Changes in V5: - Use icc_enable/disable in power on/off call. - Save some non-zero avg/peak value to ICC core by calling geni_icc_set_bw from probe so that when resume/icc_enable is called NOC are running at some non-zero value. No need to call icc_disable after BW vote because device will resume and suspend before probe return and will leave ICC in disabled state. drivers/spi/spi-geni-qcom.c | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c index c397242..5dfa1fb 100644 --- a/drivers/spi/spi-geni-qcom.c +++ b/drivers/spi/spi-geni-qcom.c @@ -234,6 +234,13 @@ static int setup_fifo_params(struct spi_device *spi_slv, return ret; } + /* Set BW quota for CPU as driver supports FIFO mode only. */ + geni_icc_bw_init(&se->icc_paths[CPU_TO_GENI], + Bps_to_icc(mas->cur_speed_hz), 0); + ret = geni_icc_set_bw(se); + if (ret) + return ret; + clk_sel = idx & CLK_SEL_MSK; m_clk_cfg = (div << CLK_DIV_SHFT) | SER_CLK_EN; spi_setup_word_len(mas, spi_slv->mode, spi_slv->bits_per_word); @@ -578,6 +585,19 @@ static int spi_geni_probe(struct platform_device *pdev) spin_lock_init(&mas->lock); pm_runtime_enable(dev); + ret = geni_icc_get(&mas->se, NULL); + if (ret) + goto spi_geni_probe_runtime_disable; + /* Set the bus quota to a reasonable value for register access */ + geni_icc_bw_init(&mas->se.icc_paths[GENI_TO_CORE], + Bps_to_icc(CORE_2X_50_MHZ), 0); + geni_icc_bw_init(&mas->se.icc_paths[CPU_TO_GENI], GENI_DEFAULT_BW, 0); + + /* Set BW for register access */ + ret = geni_icc_set_bw(&mas->se); + if (ret) + goto spi_geni_probe_runtime_disable; + ret = spi_geni_init(mas); if (ret) goto spi_geni_probe_runtime_disable; @@ -616,14 +636,24 @@ static int __maybe_unused spi_geni_runtime_suspend(struct device *dev) { struct spi_master *spi = dev_get_drvdata(dev); struct spi_geni_master *mas = spi_master_get_devdata(spi); + int ret; + + ret = geni_se_resources_off(&mas->se); + if (ret) + return ret; - return geni_se_resources_off(&mas->se); + return geni_icc_disable(&mas->se); } static int __maybe_unused spi_geni_runtime_resume(struct device *dev) { struct spi_master *spi = dev_get_drvdata(dev); struct spi_geni_master *mas = spi_master_get_devdata(spi); + int ret; + + ret = geni_icc_enable(&mas->se); + if (ret) + return ret; return geni_se_resources_on(&mas->se); } From patchwork Fri May 8 06:33:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akash Asthana X-Patchwork-Id: 11535719 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3D8E514C0 for ; Fri, 8 May 2020 06:34:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 24C0D207DD for ; Fri, 8 May 2020 06:34:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="vxp/y1lS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727123AbgEHGev (ORCPT ); Fri, 8 May 2020 02:34:51 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:39675 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727116AbgEHGev (ORCPT ); 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Fri, 8 May 2020 06:34:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org C192FC4478C Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=akashast@codeaurora.org From: Akash Asthana To: gregkh@linuxfoundation.org, agross@kernel.org, bjorn.andersson@linaro.org, wsa@the-dreams.de, broonie@kernel.org, mark.rutland@arm.com, robh+dt@kernel.org Cc: linux-i2c@vger.kernel.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, swboyd@chromium.org, mgautam@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, mka@chromium.org, dianders@chromium.org, evgreen@chromium.org, georgi.djakov@linaro.org, Akash Asthana Subject: [PATCH V5 5/7] tty: serial: qcom_geni_serial: Add interconnect support Date: Fri, 8 May 2020 12:03:37 +0530 Message-Id: <1588919619-21355-6-git-send-email-akashast@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> References: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Get the interconnect paths for Uart based Serial Engine device and vote according to the baud rate requirement of the driver. Signed-off-by: Akash Asthana Reviewed-by: Matthias Kaehlcke --- Changes in V2: - As per Bjorn's comment, removed se == NULL check from geni_serial_icc_get - As per Bjorn's comment, removed code to set se->icc_path* to NULL in failure - As per Bjorn's comment, introduced and using devm_of_icc_get API for getting path handle - As per Matthias comment, added error handling for icc_set_bw call Changes in V3: - As per Matthias comment, use common library APIs defined in geni-se driver for ICC functionality. Changes in V4: - As per Mark's comment move peak_bw guess as twice of avg_bw if nothing mentioned explicitly to ICC core. - As per Matthias's comment select core clock BW based on baud rate. If it's less than 115200 go for GENI_DEFAULT_BW else CORE_2X_50_MHZ Changes in V5: - Add icc_enable/disable to power on/off call. - Save some non-zero avg/peak value to ICC core by calling geni_icc_set_bw from probe so that when resume/icc_enable is called NOC are running at some non-zero value. No need to call icc_disable after BW vote because console devices are expected to be in active state from the probe itself and qcom_geni_serial_pm(STATE_OFF) will be called for non-console ones. drivers/tty/serial/qcom_geni_serial.c | 31 ++++++++++++++++++++++++++++--- 1 file changed, 28 insertions(+), 3 deletions(-) diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c index 8c5d97c..2a1da36 100644 --- a/drivers/tty/serial/qcom_geni_serial.c +++ b/drivers/tty/serial/qcom_geni_serial.c @@ -944,6 +944,7 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport, struct qcom_geni_serial_port *port = to_dev_port(uport, uport); unsigned long clk_rate; u32 ver, sampling_rate; + unsigned int avg_bw_core; qcom_geni_serial_stop_rx(uport); /* baud rate */ @@ -965,6 +966,16 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport, ser_clk_cfg = SER_CLK_EN; ser_clk_cfg |= clk_div << CLK_DIV_SHFT; + /* + * Bump up BW vote on CPU and CORE path as driver supports FIFO mode + * only. + */ + avg_bw_core = (baud > 115200) ? Bps_to_icc(CORE_2X_50_MHZ) + : GENI_DEFAULT_BW; + geni_icc_bw_init(&port->se.icc_paths[GENI_TO_CORE], avg_bw_core, 0); + geni_icc_bw_init(&port->se.icc_paths[CPU_TO_GENI], Bps_to_icc(baud), 0); + geni_icc_set_bw(&port->se); + /* parity */ tx_trans_cfg = readl(uport->membase + SE_UART_TX_TRANS_CFG); tx_parity_cfg = readl(uport->membase + SE_UART_TX_PARITY_CFG); @@ -1202,11 +1213,14 @@ static void qcom_geni_serial_pm(struct uart_port *uport, if (old_state == UART_PM_STATE_UNDEFINED) old_state = UART_PM_STATE_OFF; - if (new_state == UART_PM_STATE_ON && old_state == UART_PM_STATE_OFF) + if (new_state == UART_PM_STATE_ON && old_state == UART_PM_STATE_OFF) { + geni_icc_enable(&port->se); geni_se_resources_on(&port->se); - else if (new_state == UART_PM_STATE_OFF && - old_state == UART_PM_STATE_ON) + } else if (new_state == UART_PM_STATE_OFF && + old_state == UART_PM_STATE_ON) { geni_se_resources_off(&port->se); + geni_icc_disable(&port->se); + } } static const struct uart_ops qcom_geni_console_pops = { @@ -1304,6 +1318,17 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) return -ENOMEM; } + ret = geni_icc_get(&port->se, NULL); + if (ret) + return ret; + geni_icc_bw_init(&port->se.icc_paths[GENI_TO_CORE], GENI_DEFAULT_BW, 0); + geni_icc_bw_init(&port->se.icc_paths[CPU_TO_GENI], GENI_DEFAULT_BW, 0); + + /* Set BW for register access */ + ret = geni_icc_set_bw(&port->se); + if (ret) + return ret; + port->name = devm_kasprintf(uport->dev, GFP_KERNEL, "qcom_geni_serial_%s%d", uart_console(uport) ? "console" : "uart", uport->line); From patchwork Fri May 8 06:33:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akash Asthana X-Patchwork-Id: 11535729 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 83F7614C0 for ; Fri, 8 May 2020 06:34:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6995A20870 for ; Fri, 8 May 2020 06:34:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="RSZBhMED" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727118AbgEHGez (ORCPT ); Fri, 8 May 2020 02:34:55 -0400 Received: from mail27.static.mailgun.info ([104.130.122.27]:14803 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727094AbgEHGez (ORCPT ); Fri, 8 May 2020 02:34:55 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1588919694; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=DrQ7iEQnDrd8H1J+3oigpYRnH82Sad25kxEYFvcM8Xw=; b=RSZBhMED8ra+g5NrSYZYNUWcsMRgktho6odP+jfHvryTFWmtcqsFwn00xwzpi+WLy8/kW5IY L/CrDajxE0ojCmU3hC0H8TIa5rMcgNnFqo7iePORMH0mN4NGSv4zQybK2ijyYYFzngb/+ku3 CnaniuB07OZ3nA14JuXs6ytjVCc= X-Mailgun-Sending-Ip: 104.130.122.27 X-Mailgun-Sid: WyIzNzdmZSIsICJsaW51eC1zcGlAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5eb4fd87.7f0f8cf41d18-smtp-out-n01; Fri, 08 May 2020 06:34:47 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id BD0D7C44798; Fri, 8 May 2020 06:34:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.0 Received: from akashast-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: akashast) by smtp.codeaurora.org (Postfix) with ESMTPSA id 54550C44799; Fri, 8 May 2020 06:34:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 54550C44799 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=akashast@codeaurora.org From: Akash Asthana To: gregkh@linuxfoundation.org, agross@kernel.org, bjorn.andersson@linaro.org, wsa@the-dreams.de, broonie@kernel.org, mark.rutland@arm.com, robh+dt@kernel.org Cc: linux-i2c@vger.kernel.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, swboyd@chromium.org, mgautam@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, mka@chromium.org, dianders@chromium.org, evgreen@chromium.org, georgi.djakov@linaro.org, Akash Asthana Subject: [PATCH V5 6/7] spi: spi-qcom-qspi: Add interconnect support Date: Fri, 8 May 2020 12:03:38 +0530 Message-Id: <1588919619-21355-7-git-send-email-akashast@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> References: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Get the interconnect paths for QSPI device and vote according to the current bus speed of the driver. Signed-off-by: Akash Asthana Acked-by: Mark Brown --- Changes in V2: - As per Bjorn's comment, introduced and using devm_of_icc_get API for getting path handle - As per Matthias comment, added error handling for icc_set_bw call Changes in V3: - No Change. Changes in V4: - As per Mark's comment move peak_bw guess as twice of avg_bw if nothing mentioned explicitly to ICC core. Changes in V5: - Add icc_enable/disable to power on/off call. - Save some non-zero avg/peak value to ICC core by calling geni_icc_set_bw from probe so that when resume/icc_enable is called NOC are running at some non-zero value. drivers/spi/spi-qcom-qspi.c | 59 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 58 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-qcom-qspi.c b/drivers/spi/spi-qcom-qspi.c index 3c4f83b..6e299f4 100644 --- a/drivers/spi/spi-qcom-qspi.c +++ b/drivers/spi/spi-qcom-qspi.c @@ -2,6 +2,7 @@ // Copyright (c) 2017-2018, The Linux foundation. All rights reserved. #include +#include #include #include #include @@ -139,7 +140,10 @@ struct qcom_qspi { struct device *dev; struct clk_bulk_data *clks; struct qspi_xfer xfer; - /* Lock to protect xfer and IRQ accessed registers */ + struct icc_path *icc_path_cpu_to_qspi; + unsigned int avg_bw_cpu; + unsigned int peak_bw_cpu; + /* Lock to protect data accessed by IRQs */ spinlock_t lock; }; @@ -241,6 +245,20 @@ static int qcom_qspi_transfer_one(struct spi_master *master, return ret; } + /* + * Set BW quota for CPU as driver supports FIFO mode only. + * We don't have explicit peak requirement so keep it equal to avg_bw. + */ + ctrl->avg_bw_cpu = Bps_to_icc(speed_hz); + ctrl->peak_bw_cpu = ctrl->avg_bw_cpu; + ret = icc_set_bw(ctrl->icc_path_cpu_to_qspi, ctrl->avg_bw_cpu, + ctrl->peak_bw_cpu); + if (ret) { + dev_err(ctrl->dev, "%s: ICC BW voting failed for cpu\n", + __func__); + return ret; + } + spin_lock_irqsave(&ctrl->lock, flags); /* We are half duplex, so either rx or tx will be set */ @@ -458,6 +476,29 @@ static int qcom_qspi_probe(struct platform_device *pdev) if (ret) goto exit_probe_master_put; + ctrl->icc_path_cpu_to_qspi = devm_of_icc_get(dev, "qspi-config"); + if (IS_ERR(ctrl->icc_path_cpu_to_qspi)) { + ret = PTR_ERR(ctrl->icc_path_cpu_to_qspi); + if (ret != -EPROBE_DEFER) + dev_err(dev, "Failed to get cpu path, ret:%d\n", ret); + goto exit_probe_master_put; + } + /* Set BW vote for register access */ + ret = icc_set_bw(ctrl->icc_path_cpu_to_qspi, Bps_to_icc(1000), + Bps_to_icc(1000)); + if (ret) { + dev_err(ctrl->dev, "%s: ICC BW voting failed for cpu ret:%d\n", + __func__, ret); + goto exit_probe_master_put; + } + + ret = icc_disable(ctrl->icc_path_cpu_to_qspi); + if (ret) { + dev_err(ctrl->dev, "%s: ICC disable failed for cpu ret:%d\n", + __func__, ret); + goto exit_probe_master_put; + } + ret = platform_get_irq(pdev, 0); if (ret < 0) goto exit_probe_master_put; @@ -511,9 +552,17 @@ static int __maybe_unused qcom_qspi_runtime_suspend(struct device *dev) { struct spi_master *master = dev_get_drvdata(dev); struct qcom_qspi *ctrl = spi_master_get_devdata(master); + int ret; clk_bulk_disable_unprepare(QSPI_NUM_CLKS, ctrl->clks); + ret = icc_disable(ctrl->icc_path_cpu_to_qspi); + if (ret) { + dev_err_ratelimited(ctrl->dev, "%s: ICC disable failed for cpu ret:%d\n", + __func__, ret); + return ret; + } + return 0; } @@ -521,6 +570,14 @@ static int __maybe_unused qcom_qspi_runtime_resume(struct device *dev) { struct spi_master *master = dev_get_drvdata(dev); struct qcom_qspi *ctrl = spi_master_get_devdata(master); + int ret; + + ret = icc_enable(ctrl->icc_path_cpu_to_qspi); + if (ret) { + dev_err_ratelimited(ctrl->dev, "%s: ICC enable failed for cpu ret:%d\n", + __func__, ret); + return ret; + } return clk_bulk_prepare_enable(QSPI_NUM_CLKS, ctrl->clks); } From patchwork Fri May 8 06:33:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akash Asthana X-Patchwork-Id: 11535731 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9BC1514C0 for ; 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spf=none smtp.mailfrom=akashast@codeaurora.org From: Akash Asthana To: gregkh@linuxfoundation.org, agross@kernel.org, bjorn.andersson@linaro.org, wsa@the-dreams.de, broonie@kernel.org, mark.rutland@arm.com, robh+dt@kernel.org Cc: linux-i2c@vger.kernel.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, swboyd@chromium.org, mgautam@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, mka@chromium.org, dianders@chromium.org, evgreen@chromium.org, georgi.djakov@linaro.org, Akash Asthana Subject: [PATCH V5 7/7] arm64: dts: sc7180: Add interconnect for QUP and QSPI Date: Fri, 8 May 2020 12:03:39 +0530 Message-Id: <1588919619-21355-8-git-send-email-akashast@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> References: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Add interconnect ports for GENI QUPs and QSPI to set bus capabilities. Signed-off-by: Akash Asthana --- Changes in V2: - As per Bjorn's comment, ignoring 80 char limit in defining interconnects paths. Changes in V3: - No change. Change in V4: - No change. Changes in V5: - No change. arch/arm64/boot/dts/qcom/sc7180.dtsi | 127 +++++++++++++++++++++++++++++++++++ 1 file changed, 127 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi index 4216b57..21ed9a1 100644 --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi @@ -506,6 +506,8 @@ #size-cells = <2>; ranges; iommus = <&apps_smmu 0x43 0x0>; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>; + interconnect-names = "qup-core"; status = "disabled"; i2c0: i2c@880000 { @@ -518,6 +520,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>, + <&aggre1_noc MASTER_QUP_0 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -531,6 +538,9 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -542,6 +552,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart0_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -555,6 +568,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>, + <&aggre1_noc MASTER_QUP_0 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -568,6 +586,9 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -579,6 +600,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart1_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -592,6 +616,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>, + <&aggre1_noc MASTER_QUP_0 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -603,6 +632,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart2_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -616,6 +648,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>, + <&aggre1_noc MASTER_QUP_0 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -629,6 +666,9 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -640,6 +680,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart3_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -653,6 +696,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>, + <&aggre1_noc MASTER_QUP_0 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -664,6 +712,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart4_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -677,6 +728,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>, + <&aggre1_noc MASTER_QUP_0 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -690,6 +746,9 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -701,6 +760,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart5_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_0 &qup_virt SLAVE_QUP_CORE_0>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_0>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; }; @@ -715,6 +777,8 @@ #size-cells = <2>; ranges; iommus = <&apps_smmu 0x4c3 0x0>; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>; + interconnect-names = "qup-core"; status = "disabled"; i2c6: i2c@a80000 { @@ -727,6 +791,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>, + <&aggre2_noc MASTER_QUP_1 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -740,6 +809,9 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -751,6 +823,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart6_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -764,6 +839,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>, + <&aggre2_noc MASTER_QUP_1 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -775,6 +855,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart7_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -788,6 +871,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>, + <&aggre2_noc MASTER_QUP_1 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -801,6 +889,9 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -812,6 +903,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart8_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -825,6 +919,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>, + <&aggre2_noc MASTER_QUP_1 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -836,6 +935,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart9_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -849,6 +951,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>, + <&aggre2_noc MASTER_QUP_1 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -862,6 +969,9 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -873,6 +983,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart10_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -886,6 +999,11 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>, + <&aggre2_noc MASTER_QUP_1 &mc_virt SLAVE_EBI1>; + interconnect-names = "qup-core", "qup-config", + "qup-memory"; status = "disabled"; }; @@ -899,6 +1017,9 @@ interrupts = ; #address-cells = <1>; #size-cells = <0>; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; @@ -910,6 +1031,9 @@ pinctrl-names = "default"; pinctrl-0 = <&qup_uart11_default>; interrupts = ; + interconnects = <&qup_virt MASTER_QUP_CORE_1 &qup_virt SLAVE_QUP_CORE_1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_QUP_1>; + interconnect-names = "qup-core", "qup-config"; status = "disabled"; }; }; @@ -1885,6 +2009,9 @@ clocks = <&gcc GCC_QSPI_CNOC_PERIPH_AHB_CLK>, <&gcc GCC_QSPI_CORE_CLK>; clock-names = "iface", "core"; + interconnects = <&gem_noc MASTER_APPSS_PROC + &config_noc SLAVE_QSPI_0>; + interconnect-names = "qspi-config"; status = "disabled"; };