[RESEND PATCH v9 2/2] drm: bridge: samsung-dsim: complete the CLKLANE_STOP setting

From: Dario Binacchi
Date: Mon Jan 15 2024 - 05:34:55 EST


The patch completes the setting of CLKLANE_STOP for the imx8m{m,n,p}
platforms (i. e. not exynos).

Co-developed-by: Michael Trimarchi <michael@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Michael Trimarchi <michael@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Dario Binacchi <dario.binacchi@xxxxxxxxxxxxxxxxxxxx>

---

Changes in v9:
- Updated commit message
- Drop [3/3] arm64: dts: imx8mn-bsh-smm-s2/pro: add display setup
because applied.

Changes in v8:
- Move the 'status' property to the end of the list of nodes:
- pwm1
- lcdif
- mipi_dsi
- Add a newline between properties and child node (mipi_dsi_out).
- Sort the iomuxc node alphabetically
- Rename pwm1grp to blgrp

Changes in v7:
- Drop [3/4] dt-bindings: display: panel: Add synaptics r63353 panel controller
because applied.

Changes in v6:
- Drop patches:
- [06/10] drm/panel: Add Synaptics R63353 panel driver
- [07/10] dt-bindings: display: panel: Add Ilitek ili9805 panel controller
- [08/10] drm/panel: Add Ilitek ILI9805 panel driver
- [09/10] drm/panel: ilitek-ili9805: add support for Tianma TM041XDHG01 panel
Because applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next)
Drop patches:
- [01/10] drm/bridge: Fix bridge disable logic
- [02/10] drm/bridge: Fix a use case in the bridge disable logic
Because they are wrong

Changes in v3:
- Replace "synaptics,r63353" compatible with "syna,r63353", as
required by vendor-prefixes.yaml.
- Squash patch [09/11] dt-bindings: ili9805: add compatible string for Tianma TM041XDHG01
into [07/11] dt-bindings: display: panel: Add Ilitek ili9805 panel controller.

Changes in v2:
- Adjust the mipi_dsi node based on the latest patches merged into
the mainline in the dtsi files it includes.
- Added to the series the following patches:
- 0001 drm/bridge: Fix bridge disable logic
- 0002 drm/bridge: Fix a use case in the bridge disable logic
- 0003 samsung-dsim: enter display mode in the enable() callback
- 0004 drm: bridge: samsung-dsim: complete the CLKLANE_STOP setting

drivers/gpu/drm/bridge/samsung-dsim.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c
index 15bf05b2bbe4..13f181c99d7e 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -96,6 +96,7 @@
#define DSIM_MFLUSH_VS BIT(29)
/* This flag is valid only for exynos3250/3472/5260/5430 */
#define DSIM_CLKLANE_STOP BIT(30)
+#define DSIM_NON_CONTINUOUS_CLKLANE BIT(31)

/* DSIM_ESCMODE */
#define DSIM_TX_TRIGGER_RST BIT(4)
@@ -945,8 +946,12 @@ static int samsung_dsim_init_link(struct samsung_dsim *dsi)
* power consumption.
*/
if (driver_data->has_clklane_stop &&
- dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)
+ dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) {
+ if (!samsung_dsim_hw_is_exynos(dsi->plat_data->hw_type))
+ reg |= DSIM_NON_CONTINUOUS_CLKLANE;
+
reg |= DSIM_CLKLANE_STOP;
+ }
samsung_dsim_write(dsi, DSIM_CONFIG_REG, reg);

lanes_mask = BIT(dsi->lanes) - 1;
--
2.43.0