kernel.git/drivers/gpu/drm/msm/dsi/phy, branch linux-4.19.y

drm/msm/dsi: fix the inconsistent indenting

2022-09-15T10:17:02Z

[ Upstream commit 2f25a1fb4ec516c5ad67afd754334b491b9f09a5 ] Fix the inconsistent indenting in function msm_dsi_dphy_timing_calc_v3(). Fix the following smatch warnings: drivers/gpu/drm/msm/dsi/phy/dsi_phy.c:350 msm_dsi_dphy_timing_calc_v3() warn: inconsistent indenting Fixes: f1fa7ff44056 ("drm/msm/dsi: implement auto PHY timing calculator for 10nm PHY") Reported-by: kernel test robot Signed-off-by: sunliming Reviewed-by: Abhinav Kumar Patchwork: https://patchwork.freedesktop.org/patch/494662/ Link: https://lore.kernel.org/r/20220719015622.646718-1-sunliming@kylinos.cn Signed-off-by: Abhinav Kumar Signed-off-by: Sasha Levin

drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable

2022-02-08T17:23:09Z

commit 5e761a2287234bc402ba7ef07129f5103bcd775c upstream. The function performs a check on the "phy" input parameter, however, it is used before the check. Initialize the "dev" variable after the sanity check to avoid a possible NULL pointer dereference. Fixes: 5c8290284402b ("drm/msm/dsi: Split PHY drivers to separate files") Addresses-Coverity-ID: 1493860 ("Null pointer dereference") Signed-off-by: José Expósito Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20220116181844.7400-1-jose.exposito89@gmail.com Signed-off-by: Dmitry Baryshkov Signed-off-by: Greg Kroah-Hartman

drm/msm/dsi: Correct io_start for MSM8994 (20nm PHY)

2021-03-04T08:39:48Z

[ Upstream commit 33a7808ce1aea6e2edc1af25db25928137940c02 ] The previous registers were *almost* correct, but instead of PHYs, they were pointing at DSI PLLs, resulting in the PHY id autodetection failing miserably. Fixes: dcefc117cc19 ("drm/msm/dsi: Add support for msm8x94") Signed-off-by: Konrad Dybcio Signed-off-by: Rob Clark Signed-off-by: Sasha Levin

drm/msm/dsi: save pll state before dsi host is powered off

2020-03-11T13:14:51Z

[ Upstream commit a1028dcfd0dd97884072288d0c8ed7f30399b528 ] Save pll state before dsi host is powered off. Without this change some register values gets resetted. Signed-off-by: Harigovindan P Signed-off-by: Rob Clark Signed-off-by: Sasha Levin

drm/msm/dsi: implement auto PHY timing calculator for 10nm PHY

2018-04-19T14:08:16Z

Currently the DSI PHY timings are hard-coded for a specific panel for the 10nm PHY. Replace this with the auto PHY timing calculator which can calculate the PHY timings for any panel. Changes in v4: - None Changes in v3: - None Changes in v2: - None Reviewed-by: Sean Paul Reviewed-by: Archit Taneja Signed-off-by: Abhinav Kumar Signed-off-by: Sean Paul Signed-off-by: Rob Clark

drm/msm/dsi: Populate the 10nm PHY funcs

2018-02-20T15:41:21Z

Populate the PHY ops with the downstream driver as reference. There are a couple of TODOs which need to be resolved: - The PHY timings are all hardcoded for now. This needs to be replaced with automatic calculations once we get/understand them. - There are some lane configuration registers which use a new representation between physical and logical lane mappings. For now, we've hardcoced them to follow the default mapping (i.e logical 0 -> phy 0, logical 1 -> phy 1 etc). Signed-off-by: Archit Taneja Signed-off-by: Rob Clark

drm/msm/dsi: Add skeleton 10nm PHY/PLL code

2018-02-20T15:41:20Z

Add new 10nm DSI PLL/PHY files that will be used on SDM845. Just populate empty pll/phy funcs for now. These will be filled up later. Signed-off-by: Archit Taneja Signed-off-by: Rob Clark

drm/msm/dsi: check for failure on retrieving pll in dsi manager

2018-02-20T15:41:20Z

Make msm_dsi_pll_init consistently return an error code instead of NULL when pll initialization fails so that later pll retrieval can check against an error code. Add checks for these failures after retrieval of src_pll to avoid invalid pointer dereferences later in msm_dsi_pll_get_clk_provider. Signed-off-by: Lloyd Atkinson Signed-off-by: Rob Clark

drm/msm/dsi: convert to msm_clk_get()

2017-10-28T15:01:33Z

We already have, as a result of upstreaming the gpu bindings, msm_clk_get() which will try to get the clock both without and with a "_clk" suffix. Use this in DSI code so we can drop the "_clk" suffix in bindings while maintaing backwards compatibility. Signed-off-by: Rob Clark Reviewed-by: Sean Paul

drm/msm/dsi: Set up runtime PM for DSI

2017-08-02T11:53:46Z

Call the pm_runtime_get/put API where we need the clocks enabled. The main entry/exit points are 1) enabling/disabling the DSI bridge and 2) Sending commands from the DSI host to the device. Signed-off-by: Archit Taneja Signed-off-by: Rob Clark