From patchwork Fri May 3 18:13:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Easwar Hariharan X-Patchwork-Id: 13653238 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 91D13C4345F for ; Fri, 3 May 2024 18:15:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D9CB11126F8; Fri, 3 May 2024 18:15:03 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="CG7Suy4l"; dkim-atps=neutral Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by gabe.freedesktop.org (Postfix) with ESMTP id 00B6E1126F8; Fri, 3 May 2024 18:15:02 +0000 (UTC) Received: from rrs24-12-35.corp.microsoft.com (unknown [131.107.8.16]) by linux.microsoft.com (Postfix) with ESMTPSA id 95669207DBCB; Fri, 3 May 2024 11:15:02 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 95669207DBCB DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1714760102; bh=aYIH3pT2kZNnpKrmf+0ABnKJUyYxnrdFXWuEKrjbjPk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CG7Suy4lghXsVy2jE6xeeUBTFT6u7OE0Pqmu+24xr2dNm+ZEh0LMLeEDn2ReM8uIY 8wh8lufQcnLedmcM7yOLzfj/vSzvMxmd5fmcMCDUuIicHfRIM9XCwRvrir53BKK03T RMGFKxHklJbU7lLQI8paLdh4yw9/UYskK2eJcZes= From: Easwar Hariharan To: Patrik Jakobsson , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org (open list) Cc: Wolfram Sang , amd-gfx@lists.freedesktop.org (open list:RADEON and AMDGPU DRM DRIVERS), linux-kernel@vger.kernel.org (open list), intel-gfx@lists.freedesktop.org (open list:INTEL DRM DISPLAY FOR XE AND I915 DRIVERS), intel-xe@lists.freedesktop.org (open list:INTEL DRM DISPLAY FOR XE AND I915 DRIVERS), nouveau@lists.freedesktop.org (open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS), linux-i2c@vger.kernel.org (open list:I2C SUBSYSTEM HOST DRIVERS), linux-media@vger.kernel.org (open list:BTTV VIDEO4LINUX DRIVER), linux-fbdev@vger.kernel.org (open list:FRAMEBUFFER LAYER), Easwar Hariharan Subject: [PATCH v2 02/12] drm/gma500: Make I2C terminology more inclusive Date: Fri, 3 May 2024 18:13:23 +0000 Message-Id: <20240503181333.2336999-3-eahariha@linux.microsoft.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240503181333.2336999-1-eahariha@linux.microsoft.com> References: <20240503181333.2336999-1-eahariha@linux.microsoft.com> MIME-Version: 1.0 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" I2C v7, SMBus 3.2, and I3C 1.1.1 specifications have replaced "master/slave" with more appropriate terms. Inspired by and following on to Wolfram's series to fix drivers/i2c/[1], fix the terminology for users of I2C_ALGOBIT bitbanging interface, now that the approved verbiage exists in the specification. Compile tested, no functionality changes intended [1]: https://lore.kernel.org/all/20240322132619.6389-1-wsa+renesas@sang-engineering.com/ Acked-by: Thomas Zimmermann Signed-off-by: Easwar Hariharan --- drivers/gpu/drm/gma500/cdv_intel_lvds.c | 2 +- drivers/gpu/drm/gma500/intel_bios.c | 22 ++++++++++----------- drivers/gpu/drm/gma500/intel_bios.h | 4 ++-- drivers/gpu/drm/gma500/intel_gmbus.c | 2 +- drivers/gpu/drm/gma500/psb_drv.h | 2 +- drivers/gpu/drm/gma500/psb_intel_drv.h | 2 +- drivers/gpu/drm/gma500/psb_intel_lvds.c | 4 ++-- drivers/gpu/drm/gma500/psb_intel_sdvo.c | 26 ++++++++++++------------- 8 files changed, 32 insertions(+), 32 deletions(-) diff --git a/drivers/gpu/drm/gma500/cdv_intel_lvds.c b/drivers/gpu/drm/gma500/cdv_intel_lvds.c index f08a6803dc18..c7652a02b42e 100644 --- a/drivers/gpu/drm/gma500/cdv_intel_lvds.c +++ b/drivers/gpu/drm/gma500/cdv_intel_lvds.c @@ -565,7 +565,7 @@ void cdv_intel_lvds_init(struct drm_device *dev, dev->dev, "I2C bus registration failed.\n"); goto err_encoder_cleanup; } - gma_encoder->i2c_bus->slave_addr = 0x2C; + gma_encoder->i2c_bus->target_addr = 0x2C; dev_priv->lvds_i2c_bus = gma_encoder->i2c_bus; /* diff --git a/drivers/gpu/drm/gma500/intel_bios.c b/drivers/gpu/drm/gma500/intel_bios.c index 8245b5603d2c..d5924ca3ed05 100644 --- a/drivers/gpu/drm/gma500/intel_bios.c +++ b/drivers/gpu/drm/gma500/intel_bios.c @@ -14,8 +14,8 @@ #include "psb_intel_drv.h" #include "psb_intel_reg.h" -#define SLAVE_ADDR1 0x70 -#define SLAVE_ADDR2 0x72 +#define TARGET_ADDR1 0x70 +#define TARGET_ADDR2 0x72 static void *find_section(struct bdb_header *bdb, int section_id) { @@ -357,10 +357,10 @@ parse_sdvo_device_mapping(struct drm_psb_private *dev_priv, /* skip the device block if device type is invalid */ continue; } - if (p_child->slave_addr != SLAVE_ADDR1 && - p_child->slave_addr != SLAVE_ADDR2) { + if (p_child->target_addr != TARGET_ADDR1 && + p_child->target_addr != TARGET_ADDR2) { /* - * If the slave address is neither 0x70 nor 0x72, + * If the target address is neither 0x70 nor 0x72, * it is not a SDVO device. Skip it. */ continue; @@ -371,22 +371,22 @@ parse_sdvo_device_mapping(struct drm_psb_private *dev_priv, DRM_DEBUG_KMS("Incorrect SDVO port. Skip it\n"); continue; } - DRM_DEBUG_KMS("the SDVO device with slave addr %2x is found on" + DRM_DEBUG_KMS("the SDVO device with target addr %2x is found on" " %s port\n", - p_child->slave_addr, + p_child->target_addr, (p_child->dvo_port == DEVICE_PORT_DVOB) ? "SDVOB" : "SDVOC"); p_mapping = &(dev_priv->sdvo_mappings[p_child->dvo_port - 1]); if (!p_mapping->initialized) { p_mapping->dvo_port = p_child->dvo_port; - p_mapping->slave_addr = p_child->slave_addr; + p_mapping->target_addr = p_child->target_addr; p_mapping->dvo_wiring = p_child->dvo_wiring; p_mapping->ddc_pin = p_child->ddc_pin; p_mapping->i2c_pin = p_child->i2c_pin; p_mapping->initialized = 1; DRM_DEBUG_KMS("SDVO device: dvo=%x, addr=%x, wiring=%d, ddc_pin=%d, i2c_pin=%d\n", p_mapping->dvo_port, - p_mapping->slave_addr, + p_mapping->target_addr, p_mapping->dvo_wiring, p_mapping->ddc_pin, p_mapping->i2c_pin); @@ -394,10 +394,10 @@ parse_sdvo_device_mapping(struct drm_psb_private *dev_priv, DRM_DEBUG_KMS("Maybe one SDVO port is shared by " "two SDVO device.\n"); } - if (p_child->slave2_addr) { + if (p_child->target2_addr) { /* Maybe this is a SDVO device with multiple inputs */ /* And the mapping info is not added */ - DRM_DEBUG_KMS("there exists the slave2_addr. Maybe this" + DRM_DEBUG_KMS("there exists the target2_addr. Maybe this" " is a SDVO device with multiple inputs.\n"); } count++; diff --git a/drivers/gpu/drm/gma500/intel_bios.h b/drivers/gpu/drm/gma500/intel_bios.h index 0e6facf21e33..b5adea2a20c3 100644 --- a/drivers/gpu/drm/gma500/intel_bios.h +++ b/drivers/gpu/drm/gma500/intel_bios.h @@ -186,13 +186,13 @@ struct child_device_config { u16 addin_offset; u8 dvo_port; /* See Device_PORT_* above */ u8 i2c_pin; - u8 slave_addr; + u8 target_addr; u8 ddc_pin; u16 edid_ptr; u8 dvo_cfg; /* See DEVICE_CFG_* above */ u8 dvo2_port; u8 i2c2_pin; - u8 slave2_addr; + u8 target2_addr; u8 ddc2_pin; u8 capabilities; u8 dvo_wiring;/* See DEVICE_WIRE_* above */ diff --git a/drivers/gpu/drm/gma500/intel_gmbus.c b/drivers/gpu/drm/gma500/intel_gmbus.c index aa45509859f2..ee8b047587f2 100644 --- a/drivers/gpu/drm/gma500/intel_gmbus.c +++ b/drivers/gpu/drm/gma500/intel_gmbus.c @@ -333,7 +333,7 @@ gmbus_xfer(struct i2c_adapter *adapter, clear_err: /* Toggle the Software Clear Interrupt bit. This has the effect * of resetting the GMBUS controller and so clearing the - * BUS_ERROR raised by the slave's NAK. + * BUS_ERROR raised by the target's NAK. */ GMBUS_REG_WRITE(GMBUS1 + reg_offset, GMBUS_SW_CLR_INT); GMBUS_REG_WRITE(GMBUS1 + reg_offset, 0); diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h index 83c17689c454..bddf89b82fec 100644 --- a/drivers/gpu/drm/gma500/psb_drv.h +++ b/drivers/gpu/drm/gma500/psb_drv.h @@ -202,7 +202,7 @@ struct psb_intel_opregion { struct sdvo_device_mapping { u8 initialized; u8 dvo_port; - u8 slave_addr; + u8 target_addr; u8 dvo_wiring; u8 i2c_pin; u8 i2c_speed; diff --git a/drivers/gpu/drm/gma500/psb_intel_drv.h b/drivers/gpu/drm/gma500/psb_intel_drv.h index c111e933e1ed..2499fd6a80c9 100644 --- a/drivers/gpu/drm/gma500/psb_intel_drv.h +++ b/drivers/gpu/drm/gma500/psb_intel_drv.h @@ -80,7 +80,7 @@ struct psb_intel_mode_device { struct gma_i2c_chan { struct i2c_adapter base; struct i2c_algo_bit_data algo; - u8 slave_addr; + u8 target_addr; /* for getting at dev. private (mmio etc.) */ struct drm_device *drm_dev; diff --git a/drivers/gpu/drm/gma500/psb_intel_lvds.c b/drivers/gpu/drm/gma500/psb_intel_lvds.c index 8486de230ec9..d1cd9a940395 100644 --- a/drivers/gpu/drm/gma500/psb_intel_lvds.c +++ b/drivers/gpu/drm/gma500/psb_intel_lvds.c @@ -97,7 +97,7 @@ static int psb_lvds_i2c_set_brightness(struct drm_device *dev, struct i2c_msg msgs[] = { { - .addr = lvds_i2c_bus->slave_addr, + .addr = lvds_i2c_bus->target_addr, .flags = 0, .len = 2, .buf = out_buf, @@ -707,7 +707,7 @@ void psb_intel_lvds_init(struct drm_device *dev, dev->dev, "I2C bus registration failed.\n"); goto err_encoder_cleanup; } - lvds_priv->i2c_bus->slave_addr = 0x2C; + lvds_priv->i2c_bus->target_addr = 0x2C; dev_priv->lvds_i2c_bus = lvds_priv->i2c_bus; /* diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo.c b/drivers/gpu/drm/gma500/psb_intel_sdvo.c index e4f914deceba..8dafff963ca8 100644 --- a/drivers/gpu/drm/gma500/psb_intel_sdvo.c +++ b/drivers/gpu/drm/gma500/psb_intel_sdvo.c @@ -70,7 +70,7 @@ struct psb_intel_sdvo { struct gma_encoder base; struct i2c_adapter *i2c; - u8 slave_addr; + u8 target_addr; struct i2c_adapter ddc; @@ -259,13 +259,13 @@ static bool psb_intel_sdvo_read_byte(struct psb_intel_sdvo *psb_intel_sdvo, u8 a { struct i2c_msg msgs[] = { { - .addr = psb_intel_sdvo->slave_addr, + .addr = psb_intel_sdvo->target_addr, .flags = 0, .len = 1, .buf = &addr, }, { - .addr = psb_intel_sdvo->slave_addr, + .addr = psb_intel_sdvo->target_addr, .flags = I2C_M_RD, .len = 1, .buf = ch, @@ -463,14 +463,14 @@ static bool psb_intel_sdvo_write_cmd(struct psb_intel_sdvo *psb_intel_sdvo, u8 c psb_intel_sdvo_debug_write(psb_intel_sdvo, cmd, args, args_len); for (i = 0; i < args_len; i++) { - msgs[i].addr = psb_intel_sdvo->slave_addr; + msgs[i].addr = psb_intel_sdvo->target_addr; msgs[i].flags = 0; msgs[i].len = 2; msgs[i].buf = buf + 2 *i; buf[2*i + 0] = SDVO_I2C_ARG_0 - i; buf[2*i + 1] = ((u8*)args)[i]; } - msgs[i].addr = psb_intel_sdvo->slave_addr; + msgs[i].addr = psb_intel_sdvo->target_addr; msgs[i].flags = 0; msgs[i].len = 2; msgs[i].buf = buf + 2*i; @@ -479,12 +479,12 @@ static bool psb_intel_sdvo_write_cmd(struct psb_intel_sdvo *psb_intel_sdvo, u8 c /* the following two are to read the response */ status = SDVO_I2C_CMD_STATUS; - msgs[i+1].addr = psb_intel_sdvo->slave_addr; + msgs[i+1].addr = psb_intel_sdvo->target_addr; msgs[i+1].flags = 0; msgs[i+1].len = 1; msgs[i+1].buf = &status; - msgs[i+2].addr = psb_intel_sdvo->slave_addr; + msgs[i+2].addr = psb_intel_sdvo->target_addr; msgs[i+2].flags = I2C_M_RD; msgs[i+2].len = 1; msgs[i+2].buf = &status; @@ -1899,7 +1899,7 @@ psb_intel_sdvo_is_hdmi_connector(struct psb_intel_sdvo *psb_intel_sdvo, int devi } static u8 -psb_intel_sdvo_get_slave_addr(struct drm_device *dev, int sdvo_reg) +psb_intel_sdvo_get_target_addr(struct drm_device *dev, int sdvo_reg) { struct drm_psb_private *dev_priv = to_drm_psb_private(dev); struct sdvo_device_mapping *my_mapping, *other_mapping; @@ -1913,14 +1913,14 @@ psb_intel_sdvo_get_slave_addr(struct drm_device *dev, int sdvo_reg) } /* If the BIOS described our SDVO device, take advantage of it. */ - if (my_mapping->slave_addr) - return my_mapping->slave_addr; + if (my_mapping->target_addr) + return my_mapping->target_addr; /* If the BIOS only described a different SDVO device, use the * address that it isn't using. */ - if (other_mapping->slave_addr) { - if (other_mapping->slave_addr == 0x70) + if (other_mapping->target_addr) { + if (other_mapping->target_addr == 0x70) return 0x72; else return 0x70; @@ -2446,7 +2446,7 @@ bool psb_intel_sdvo_init(struct drm_device *dev, int sdvo_reg) return false; psb_intel_sdvo->sdvo_reg = sdvo_reg; - psb_intel_sdvo->slave_addr = psb_intel_sdvo_get_slave_addr(dev, sdvo_reg) >> 1; + psb_intel_sdvo->target_addr = psb_intel_sdvo_get_target_addr(dev, sdvo_reg) >> 1; psb_intel_sdvo_select_i2c_bus(dev_priv, psb_intel_sdvo, sdvo_reg); if (!psb_intel_sdvo_init_ddc_proxy(psb_intel_sdvo, dev)) { kfree(psb_intel_sdvo);