From patchwork Tue Mar 3 13:36:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Westerberg X-Patchwork-Id: 11418105 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 36F36924 for ; Tue, 3 Mar 2020 13:37:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2068E20848 for ; Tue, 3 Mar 2020 13:37:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728500AbgCCNhg (ORCPT ); Tue, 3 Mar 2020 08:37:36 -0500 Received: from mga06.intel.com ([134.134.136.31]:23938 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729556AbgCCNhA (ORCPT ); Tue, 3 Mar 2020 08:37:00 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Mar 2020 05:36:59 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,511,1574150400"; d="scan'208";a="438723994" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga005.fm.intel.com with ESMTP; 03 Mar 2020 05:36:55 -0800 Received: by black.fi.intel.com (Postfix, from userid 1001) id E243446B; Tue, 3 Mar 2020 15:36:49 +0200 (EET) From: Mika Westerberg To: Andy Shevchenko , Darren Hart , Lee Jones , Greg Kroah-Hartman Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H . Peter Anvin" , x86@kernel.org, Zha Qipeng , "David E . Box" , Guenter Roeck , Heikki Krogerus , Wim Van Sebroeck , Mika Westerberg , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v8 11/19] mfd: intel_soc_pmic_bxtwc: Convert to use new SCU IPC API Date: Tue, 3 Mar 2020 16:36:41 +0300 Message-Id: <20200303133649.39819-12-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200303133649.39819-1-mika.westerberg@linux.intel.com> References: <20200303133649.39819-1-mika.westerberg@linux.intel.com> MIME-Version: 1.0 Sender: platform-driver-x86-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org Convert the Intel Broxton Whiskey Cover PMIC driver to use the new SCU IPC API. This allows us to get rid of the PMC IPC implementation which is now covered in SCU IPC driver. We drop the error log if the IPC command fails because intel_scu_ipc_dev_command() does that already. Also move PMIC specific IPC message constants to the PMIC driver from the intel_pmc_ipc.h header. Signed-off-by: Mika Westerberg Reviewed-by: Andy Shevchenko Acked-for-MFD-by: Lee Jones --- arch/x86/include/asm/intel_pmc_ipc.h | 3 --- drivers/mfd/intel_soc_pmic_bxtwc.c | 34 ++++++++++++++-------------- 2 files changed, 17 insertions(+), 20 deletions(-) diff --git a/arch/x86/include/asm/intel_pmc_ipc.h b/arch/x86/include/asm/intel_pmc_ipc.h index e6da1ce26256..b438a488f613 100644 --- a/arch/x86/include/asm/intel_pmc_ipc.h +++ b/arch/x86/include/asm/intel_pmc_ipc.h @@ -3,9 +3,6 @@ #define _ASM_X86_INTEL_PMC_IPC_H_ /* Commands */ -#define PMC_IPC_PMIC_ACCESS 0xFF -#define PMC_IPC_PMIC_ACCESS_READ 0x0 -#define PMC_IPC_PMIC_ACCESS_WRITE 0x1 #define PMC_IPC_USB_PWR_CTRL 0xF0 #define PMC_IPC_PMIC_BLACKLIST_SEL 0xEF #define PMC_IPC_PHY_CONFIG 0xEE diff --git a/drivers/mfd/intel_soc_pmic_bxtwc.c b/drivers/mfd/intel_soc_pmic_bxtwc.c index 739cfb5b69fe..eba89780dbe7 100644 --- a/drivers/mfd/intel_soc_pmic_bxtwc.c +++ b/drivers/mfd/intel_soc_pmic_bxtwc.c @@ -15,7 +15,7 @@ #include #include -#include +#include /* PMIC device registers */ #define REG_ADDR_MASK 0xFF00 @@ -58,6 +58,10 @@ /* Whiskey Cove PMIC share same ACPI ID between different platforms */ #define BROXTON_PMIC_WC_HRV 4 +#define PMC_PMIC_ACCESS 0xFF +#define PMC_PMIC_READ 0x0 +#define PMC_PMIC_WRITE 0x1 + enum bxtwc_irqs { BXTWC_PWRBTN_LVL1_IRQ = 0, BXTWC_TMU_LVL1_IRQ, @@ -288,13 +292,12 @@ static int regmap_ipc_byte_reg_read(void *context, unsigned int reg, ipc_in[0] = reg; ipc_in[1] = i2c_addr; - ret = intel_pmc_ipc_command(PMC_IPC_PMIC_ACCESS, - PMC_IPC_PMIC_ACCESS_READ, - ipc_in, sizeof(ipc_in), (u32 *)ipc_out, 1); - if (ret) { - dev_err(pmic->dev, "Failed to read from PMIC\n"); + ret = intel_scu_ipc_dev_command(pmic->scu, PMC_PMIC_ACCESS, + PMC_PMIC_READ, ipc_in, sizeof(ipc_in), + ipc_out, sizeof(ipc_out)); + if (ret) return ret; - } + *val = ipc_out[0]; return 0; @@ -303,7 +306,6 @@ static int regmap_ipc_byte_reg_read(void *context, unsigned int reg, static int regmap_ipc_byte_reg_write(void *context, unsigned int reg, unsigned int val) { - int ret; int i2c_addr; u8 ipc_in[3]; struct intel_soc_pmic *pmic = context; @@ -321,15 +323,9 @@ static int regmap_ipc_byte_reg_write(void *context, unsigned int reg, ipc_in[0] = reg; ipc_in[1] = i2c_addr; ipc_in[2] = val; - ret = intel_pmc_ipc_command(PMC_IPC_PMIC_ACCESS, - PMC_IPC_PMIC_ACCESS_WRITE, - ipc_in, sizeof(ipc_in), NULL, 0); - if (ret) { - dev_err(pmic->dev, "Failed to write to PMIC\n"); - return ret; - } - - return 0; + return intel_scu_ipc_dev_command(pmic->scu, PMC_PMIC_ACCESS, + PMC_PMIC_WRITE, ipc_in, sizeof(ipc_in), + NULL, 0); } /* sysfs interfaces to r/w PMIC registers, required by initial script */ @@ -457,6 +453,10 @@ static int bxtwc_probe(struct platform_device *pdev) dev_set_drvdata(&pdev->dev, pmic); pmic->dev = &pdev->dev; + pmic->scu = devm_intel_scu_ipc_dev_get(&pdev->dev); + if (!pmic->scu) + return -EPROBE_DEFER; + pmic->regmap = devm_regmap_init(&pdev->dev, NULL, pmic, &bxtwc_regmap_config); if (IS_ERR(pmic->regmap)) {