From: Harigovindan P <harigovi@codeaurora.org> To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Cc: Harigovindan P <harigovi@codeaurora.org>, linux-kernel@vger.kernel.org, robdclark@gmail.com, seanpaul@chromium.org, hoegsberg@chromium.org, abhinavk@codeaurora.org, jsanka@codeaurora.org, chandanu@codeaurora.org, nganji@codeaurora.org Subject: [v1] drm/msm: update LANE_CTRL register value from default value Date: Mon, 23 Dec 2019 15:49:21 +0530 [thread overview] Message-ID: <1577096361-8381-1-git-send-email-harigovi@codeaurora.org> (raw) Updating REG_DSI_LANE_CTRL register value by reading default register value and writing it back using bitwise OR with DSI_LANE_CTRL_CLKLN_HS_FORCE_REQUEST. This works for all panels. Signed-off-by: Harigovindan P <harigovi@codeaurora.org> --- drivers/gpu/drm/msm/dsi/dsi_host.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index e6289a3..d3c5233 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -816,7 +816,7 @@ static void dsi_ctrl_config(struct msm_dsi_host *msm_host, bool enable, u32 flags = msm_host->mode_flags; enum mipi_dsi_pixel_format mipi_fmt = msm_host->format; const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd; - u32 data = 0; + u32 data = 0, lane_ctrl = 0; if (!enable) { dsi_write(msm_host, REG_DSI_CTRL, 0); @@ -904,9 +904,11 @@ static void dsi_ctrl_config(struct msm_dsi_host *msm_host, bool enable, dsi_write(msm_host, REG_DSI_LANE_SWAP_CTRL, DSI_LANE_SWAP_CTRL_DLN_SWAP_SEL(msm_host->dlane_swap)); - if (!(flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)) + if (!(flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)) { + lane_ctrl = dsi_read(msm_host, REG_DSI_LANE_CTRL); dsi_write(msm_host, REG_DSI_LANE_CTRL, - DSI_LANE_CTRL_CLKLN_HS_FORCE_REQUEST); + lane_ctrl | DSI_LANE_CTRL_CLKLN_HS_FORCE_REQUEST); + } data |= DSI_CTRL_ENABLE; -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Harigovindan P <harigovi@codeaurora.org> To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Cc: Harigovindan P <harigovi@codeaurora.org>, abhinavk@codeaurora.org, linux-kernel@vger.kernel.org, seanpaul@chromium.org, hoegsberg@chromium.org, chandanu@codeaurora.org Subject: [v1] drm/msm: update LANE_CTRL register value from default value Date: Mon, 23 Dec 2019 15:49:21 +0530 [thread overview] Message-ID: <1577096361-8381-1-git-send-email-harigovi@codeaurora.org> (raw) Updating REG_DSI_LANE_CTRL register value by reading default register value and writing it back using bitwise OR with DSI_LANE_CTRL_CLKLN_HS_FORCE_REQUEST. This works for all panels. Signed-off-by: Harigovindan P <harigovi@codeaurora.org> --- drivers/gpu/drm/msm/dsi/dsi_host.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index e6289a3..d3c5233 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -816,7 +816,7 @@ static void dsi_ctrl_config(struct msm_dsi_host *msm_host, bool enable, u32 flags = msm_host->mode_flags; enum mipi_dsi_pixel_format mipi_fmt = msm_host->format; const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd; - u32 data = 0; + u32 data = 0, lane_ctrl = 0; if (!enable) { dsi_write(msm_host, REG_DSI_CTRL, 0); @@ -904,9 +904,11 @@ static void dsi_ctrl_config(struct msm_dsi_host *msm_host, bool enable, dsi_write(msm_host, REG_DSI_LANE_SWAP_CTRL, DSI_LANE_SWAP_CTRL_DLN_SWAP_SEL(msm_host->dlane_swap)); - if (!(flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)) + if (!(flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)) { + lane_ctrl = dsi_read(msm_host, REG_DSI_LANE_CTRL); dsi_write(msm_host, REG_DSI_LANE_CTRL, - DSI_LANE_CTRL_CLKLN_HS_FORCE_REQUEST); + lane_ctrl | DSI_LANE_CTRL_CLKLN_HS_FORCE_REQUEST); + } data |= DSI_CTRL_ENABLE; -- 2.7.4 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next reply other threads:[~2019-12-23 10:19 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-12-23 10:19 Harigovindan P [this message] 2019-12-23 10:19 ` [v1] drm/msm: update LANE_CTRL register value from default value Harigovindan P 2019-12-23 13:58 ` [Freedreno] " Jeffrey Hugo 2019-12-23 13:58 ` Jeffrey Hugo
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