From: Enric Balletbo i Serra <enric.balletbo@collabora.com> To: architt@codeaurora.org, inki.dae@samsung.com, thierry.reding@gmail.com, hjc@rock-chips.com, seanpaul@chromium.org, airlied@linux.ie, tfiga@chromium.org, heiko@sntech.de Cc: dri-devel@lists.freedesktop.org, dianders@chromium.org, a.hajda@samsung.com, ykk@rock-chips.com, kernel@collabora.com, m.szyprowski@samsung.com, linux-samsung-soc@vger.kernel.org, jy0922.shim@samsung.com, rydberg@bitmath.org, krzk@kernel.org, linux-rockchip@lists.infradead.org, kgene@kernel.org, linux-input@vger.kernel.org, orjan.eide@arm.com, wxt@rock-chips.com, jeffy.chen@rock-chips.com, linux-arm-kernel@lists.infradead.org, mark.yao@rock-chips.com, wzz@rock-chips.com, hl@rock-chips.com, jingoohan1@gmail.com, sw0312.kim@samsung.com, linux-kernel@vger.kernel.org, kyungmin.park@samsung.com, Laurent.pinchart@ideasonboard.com, kuankuan.y@gmail.com, hshi@chromium.org, "Stéphane Marchesin" <marcheu@chromium.org>, "Enric Balletbo i Serra" <enric.balletbo@collabora.com> Subject: [PATCH v5 08/36] drm/bridge: analogix_dp: Check AUX_EN status when doing AUX transfer Date: Fri, 9 Mar 2018 23:22:59 +0100 [thread overview] Message-ID: <20180309222327.18689-9-enric.balletbo@collabora.com> (raw) In-Reply-To: <20180309222327.18689-1-enric.balletbo@collabora.com> From: Lin Huang <hl@rock-chips.com> We should check AUX_EN bit to confirm the AUX CH operation is completed. Cc: Stéphane Marchesin <marcheu@chromium.org> Signed-off-by: Lin Huang <hl@rock-chips.com> Signed-off-by: zain wang <wzz@rock-chips.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> --- drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 25 +++++++++++++---------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c index 9df2f3ef000c..e78c861b9e06 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c @@ -1073,9 +1073,9 @@ ssize_t analogix_dp_transfer(struct analogix_dp_device *dp, { u32 reg; u8 *buffer = msg->buffer; - int timeout_loop = 0; unsigned int i; int num_transferred = 0; + int ret; /* Buffer size of AUX CH is 16 bytes */ if (WARN_ON(msg->size > 16)) @@ -1139,17 +1139,20 @@ ssize_t analogix_dp_transfer(struct analogix_dp_device *dp, writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2); - /* Is AUX CH command reply received? */ + ret = readx_poll_timeout(readl, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2, + reg, !(reg & AUX_EN), 25, 500 * 1000); + if (ret) { + dev_err(dp->dev, "AUX CH enable timeout!\n"); + return -ETIMEDOUT; + } + /* TODO: Wait for an interrupt instead of looping? */ - reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA); - while (!(reg & RPLY_RECEIV)) { - timeout_loop++; - if (timeout_loop > DP_TIMEOUT_LOOP_COUNT) { - dev_err(dp->dev, "AUX CH command reply failed!\n"); - return -ETIMEDOUT; - } - reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA); - usleep_range(10, 11); + /* Is AUX CH command reply received? */ + ret = readx_poll_timeout(readl, dp->reg_base + ANALOGIX_DP_INT_STA, + reg, reg & RPLY_RECEIV, 10, 20 * 1000); + if (ret) { + dev_err(dp->dev, "AUX CH cmd reply timeout!\n"); + return -ETIMEDOUT; } /* Clear interrupt source for AUX CH command reply */ -- 2.16.1
WARNING: multiple messages have this Message-ID (diff)
From: enric.balletbo@collabora.com (Enric Balletbo i Serra) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 08/36] drm/bridge: analogix_dp: Check AUX_EN status when doing AUX transfer Date: Fri, 9 Mar 2018 23:22:59 +0100 [thread overview] Message-ID: <20180309222327.18689-9-enric.balletbo@collabora.com> (raw) In-Reply-To: <20180309222327.18689-1-enric.balletbo@collabora.com> From: Lin Huang <hl@rock-chips.com> We should check AUX_EN bit to confirm the AUX CH operation is completed. Cc: St?phane Marchesin <marcheu@chromium.org> Signed-off-by: Lin Huang <hl@rock-chips.com> Signed-off-by: zain wang <wzz@rock-chips.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> --- drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 25 +++++++++++++---------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c index 9df2f3ef000c..e78c861b9e06 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c @@ -1073,9 +1073,9 @@ ssize_t analogix_dp_transfer(struct analogix_dp_device *dp, { u32 reg; u8 *buffer = msg->buffer; - int timeout_loop = 0; unsigned int i; int num_transferred = 0; + int ret; /* Buffer size of AUX CH is 16 bytes */ if (WARN_ON(msg->size > 16)) @@ -1139,17 +1139,20 @@ ssize_t analogix_dp_transfer(struct analogix_dp_device *dp, writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2); - /* Is AUX CH command reply received? */ + ret = readx_poll_timeout(readl, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2, + reg, !(reg & AUX_EN), 25, 500 * 1000); + if (ret) { + dev_err(dp->dev, "AUX CH enable timeout!\n"); + return -ETIMEDOUT; + } + /* TODO: Wait for an interrupt instead of looping? */ - reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA); - while (!(reg & RPLY_RECEIV)) { - timeout_loop++; - if (timeout_loop > DP_TIMEOUT_LOOP_COUNT) { - dev_err(dp->dev, "AUX CH command reply failed!\n"); - return -ETIMEDOUT; - } - reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA); - usleep_range(10, 11); + /* Is AUX CH command reply received? */ + ret = readx_poll_timeout(readl, dp->reg_base + ANALOGIX_DP_INT_STA, + reg, reg & RPLY_RECEIV, 10, 20 * 1000); + if (ret) { + dev_err(dp->dev, "AUX CH cmd reply timeout!\n"); + return -ETIMEDOUT; } /* Clear interrupt source for AUX CH command reply */ -- 2.16.1
next prev parent reply other threads:[~2018-03-09 22:24 UTC|newest] Thread overview: 191+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-03-09 22:22 [PATCH v5 00/36] DRM Rockchip rk3399 (Kevin) Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-09 22:22 ` [PATCH v5 01/36] drm/bridge: analogix_dp: detect Sink PSR state after configuring the PSR Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-12 17:00 ` Heiko Stübner 2018-03-12 17:00 ` Heiko Stübner 2018-03-12 17:00 ` Heiko Stübner 2018-03-14 5:29 ` Archit Taneja 2018-03-14 5:29 ` Archit Taneja 2018-03-14 5:29 ` Archit Taneja 2018-03-14 10:32 ` Heiko Stübner 2018-03-14 10:32 ` Heiko Stübner 2018-03-14 10:32 ` Heiko Stübner 2018-03-09 22:22 ` [PATCH v5 02/36] drm/rockchip: Remove analogix psr worker Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-12 16:26 ` Heiko Stübner 2018-03-12 16:26 ` Heiko Stübner 2018-03-12 16:26 ` Heiko Stübner 2018-03-14 10:32 ` Heiko Stübner 2018-03-14 10:32 ` Heiko Stübner 2018-03-14 10:32 ` Heiko Stübner 2018-03-09 22:22 ` [PATCH v5 03/36] drm/bridge: analogix_dp: Don't change psr while bridge is disabled Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-12 17:02 ` Heiko Stübner 2018-03-12 17:02 ` Heiko Stübner 2018-03-12 17:02 ` Heiko Stübner 2018-03-14 5:30 ` Archit Taneja 2018-03-14 5:30 ` Archit Taneja 2018-03-14 5:30 ` Archit Taneja 2018-03-14 10:32 ` Heiko Stübner 2018-03-14 10:32 ` Heiko Stübner 2018-03-14 10:32 ` Heiko Stübner 2018-03-09 22:22 ` [PATCH v5 04/36] drm/rockchip: add mutex vop lock Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-12 16:29 ` Heiko Stübner 2018-03-12 16:29 ` Heiko Stübner 2018-03-12 16:29 ` Heiko Stübner 2018-03-14 10:33 ` Heiko Stübner 2018-03-14 10:33 ` Heiko Stübner 2018-03-14 10:33 ` Heiko Stübner 2018-03-09 22:22 ` [PATCH v5 05/36] drm/bridge: analogix_dp: add fast link train for eDP Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-14 5:52 ` Archit Taneja 2018-03-14 5:52 ` Archit Taneja 2018-03-14 5:52 ` Archit Taneja 2018-03-14 10:39 ` Heiko Stübner 2018-03-14 10:39 ` Heiko Stübner 2018-03-14 10:39 ` Heiko Stübner 2018-03-09 22:22 ` [PATCH v5 06/36] drm/rockchip: Only wait for panel ACK on PSR entry Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-12 16:58 ` Heiko Stübner 2018-03-12 16:58 ` Heiko Stübner 2018-03-12 16:58 ` Heiko Stübner 2018-03-13 0:26 ` Enric Balletbo i Serra 2018-03-13 0:26 ` Enric Balletbo i Serra 2018-03-13 0:26 ` Enric Balletbo i Serra 2018-03-14 5:54 ` Archit Taneja 2018-03-14 5:54 ` Archit Taneja 2018-03-14 5:54 ` Archit Taneja 2018-03-14 12:51 ` Heiko Stübner 2018-03-14 12:51 ` Heiko Stübner 2018-03-14 12:51 ` Heiko Stübner 2018-03-09 22:22 ` [PATCH v5 07/36] drm/bridge: analogix_dp: Move enable video into config_video() Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-09 22:22 ` Enric Balletbo i Serra 2018-03-14 5:59 ` Archit Taneja 2018-03-14 5:59 ` Archit Taneja 2018-03-14 5:59 ` Archit Taneja 2018-03-17 16:00 ` Heiko Stuebner 2018-03-17 16:00 ` Heiko Stuebner 2018-03-17 16:00 ` Heiko Stuebner 2018-03-09 22:22 ` Enric Balletbo i Serra [this message] 2018-03-09 22:22 ` [PATCH v5 08/36] drm/bridge: analogix_dp: Check AUX_EN status when doing AUX transfer Enric Balletbo i Serra 2018-03-14 6:01 ` Archit Taneja 2018-03-14 6:01 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 09/36] drm/bridge: analogix_dp: Don't use fast link training when panel just powered up Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:03 ` Archit Taneja 2018-03-14 6:03 ` Archit Taneja 2018-03-14 6:03 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 10/36] drm/bridge: analogix_dp: Retry bridge enable when it failed Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:07 ` Archit Taneja 2018-03-14 6:07 ` Archit Taneja 2018-03-14 6:07 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 11/36] drm/bridge: analogix_dp: Wait for HPD signal before configuring link Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:09 ` Archit Taneja 2018-03-14 6:09 ` Archit Taneja 2018-03-14 6:09 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 12/36] drm/bridge: analogix_dp: Set PD_INC_BG first when powering up edp phy Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:10 ` Archit Taneja 2018-03-14 6:10 ` Archit Taneja 2018-03-14 6:10 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 13/36] drm/bridge: analogix_dp: Ensure edp is disabled when shutting down the panel Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:14 ` Archit Taneja 2018-03-14 6:14 ` Archit Taneja 2018-03-14 6:14 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 14/36] drm/bridge: analogix_dp: Extend hpd check time to 100ms Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:15 ` Archit Taneja 2018-03-14 6:15 ` Archit Taneja 2018-03-14 6:15 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 15/36] drm/bridge: analogix_dp: Fix incorrect usage of enhanced mode Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:17 ` Archit Taneja 2018-03-14 6:17 ` Archit Taneja 2018-03-14 6:17 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 16/36] drm/bridge: analogix_dp: Check dpcd write/read status Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:19 ` Archit Taneja 2018-03-14 6:19 ` Archit Taneja 2018-03-14 6:19 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 17/36] drm/bridge: analogix_dp: Fix AUX_PD bit for Rockchip Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:23 ` Archit Taneja 2018-03-14 6:23 ` Archit Taneja 2018-03-14 6:23 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 18/36] drm/bridge: analogix_dp: Reset aux channel if an error occurred Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:30 ` Archit Taneja 2018-03-14 6:30 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 19/36] drm/rockchip: Restore psr->state when enable/disable psr failed Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-12 17:06 ` Heiko Stübner 2018-03-12 17:06 ` Heiko Stübner 2018-03-12 17:06 ` Heiko Stübner 2018-03-14 6:32 ` Archit Taneja 2018-03-14 6:32 ` Archit Taneja 2018-03-14 6:32 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 20/36] drm/bridge: analogix_dp: Don't use ANALOGIX_DP_PLL_CTL to control pll Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:33 ` Archit Taneja 2018-03-14 6:33 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 21/36] drm/bridge: analogix_dp: Fix timeout of video streamclk config Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:33 ` Archit Taneja 2018-03-14 6:33 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 22/36] drm/bridge: analogix_dp: Fix incorrect operations with register ANALOGIX_DP_FUNC_EN_1 Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:34 ` Archit Taneja 2018-03-14 6:34 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 23/36] drm/bridge: analogix_dp: Move fast link training detect to set_bridge Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:52 ` Archit Taneja 2018-03-14 6:52 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 24/36] drm/bridge: analogix_dp: Reorder plat_data->power_off to happen sooner Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:50 ` Archit Taneja 2018-03-14 6:50 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 25/36] drm/bridge: analogix_dp: Properly log AUX CH errors Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:52 ` Archit Taneja 2018-03-14 6:52 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 26/36] drm/bridge: analogix_dp: Properly disable aux chan retries on rockchip Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-14 6:53 ` Archit Taneja 2018-03-14 6:53 ` Archit Taneja 2018-03-09 22:23 ` [PATCH v5 27/36] drm/rockchip: pre dither down when output bpc is 8bit Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` [PATCH v5 28/36] drm/bridge: analogix_dp: Split the platform-specific poweron in two parts Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` [PATCH v5 29/36] drm/rockchip: analogix_dp: Do not call Analogix code before bind Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` [PATCH v5 30/36] drm/rockchip: Disable PSR on input events Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` [PATCH v5 31/36] drm/rockchip: Cancel PSR enable work before changing the state Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` [PATCH v5 32/36] drm/rockchip: psr: Avoid redundant calls to .set() callback Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` [PATCH v5 33/36] drm/rockchip: psr: Sanitize semantics of allow/disallow API Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` [PATCH v5 34/36] drm/rockchip: Disable PSR from reboot notifier Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` [PATCH v5 35/36] drm/rockchip: Disallow PSR for the whole atomic commit Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-09 22:23 ` [PATCH v5 36/36] drm/rockchip: psr: Remove flush by CRTC Enric Balletbo i Serra 2018-03-09 22:23 ` Enric Balletbo i Serra 2018-03-12 17:27 ` [PATCH v5 00/36] DRM Rockchip rk3399 (Kevin) Heiko Stübner 2018-03-12 17:27 ` Heiko Stübner 2018-03-12 17:27 ` Heiko Stübner
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