kernel/drivers/gpu/drm/amd/display/dc/gpio, branch linux-rolling-stable

drm/amd/display: Adjust set_value function with prefix to help in ftrace

2025-05-22T16:01:47Z

Adjust set_value function in hw_hpd.c file to have prefix to help in ftrace, the name change from 'set_value' to 'dal_hw_hpd_set_value' Signed-off-by: Leonardo da Silva Gomes Co-developed-by: Derick Frias Signed-off-by: Derick Frias Signed-off-by: Alex Deucher

drm/amd/display: Adjust get_value function with prefix to help in ftrace

2025-05-22T16:01:42Z

Adjust get_value function in hw_hpd.c file to have prefix to help in ftrace, the name change from 'get_value' to 'dal_hw_hpd_get_value' Signed-off-by: Leonardo da Silva Gomes Co-developed-by: Derick Frias Signed-off-by: Derick Frias Signed-off-by: Alex Deucher

drm/amd/display: Implement HDMI Read Request

2025-04-21T15:27:25Z

[Why] Read Request provides alterative method to polling to the HDMI sinks that support it. [How] Implement Read Request where interrupt can be generated by the sink. Reviewed-by: Joshua Aberback Signed-off-by: Chris Park Signed-off-by: Zaeem Mohamed Tested-by: Mark Broadworth Signed-off-by: Alex Deucher

drm/amd/display: Add DCN36 GPIO

2025-02-13T02:04:07Z

Add DCN36 support in GPIO. Acked-by: Harry Wentland Reviewed-by: Martin Leung Signed-off-by: Taimur Hassan Signed-off-by: Wayne Lin Signed-off-by: Alex Deucher

drm/amd/display: Remove useless assignments

2024-10-15T15:22:48Z

[WHAT & HOW] "split_pipe" are assigned to test_pipe and then immediately are updated to other values. The same also applies to "status" as well. Similarly, "id", "dwb" and "unused_dpps" are assigned but the functions immediately return, and thus they have no effects. As a results, the assignments removed. This fixes 5 UNUSED_VALUE issues reported by Coverity. Reviewed-by: Rodrigo Siqueira Signed-off-by: Alex Hung Signed-off-by: Roman Li Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add two dmmuy I2C entry for GPIO port mapping issue

2024-07-27T21:31:04Z

[Why] When only 4 I2C is declared, two dummies are required to correctly map GPIO port. [How] Add one more I2C dummy entry to match GPIO port. Signed-off-by: Chris Park Reviewed-by: Alvin Lee Tested-by: Daniel Wheeler Signed-off-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Remove useless comparison of unsigned int vs. 0

2024-06-14T20:17:17Z

[WHY & HOW] The comparisons of unsigned int with 0 can have no meanings, i.e. unsigned int >= 0 (always true) or unsigned int < 0 (always false), and therefore they are removed. This fixes 12 NO_EFFECT issues reported by Coverity. Reviewed-by: Harry Wentland Acked-by: Zaeem Mohamed Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Fix Coverity INTEGER_OVERFLOW within dal_gpio_service_create

2024-05-02T20:18:17Z

[Why] For subtraction, coverity reports integer overflow warning message when variable type is uint32_t. [How] Change variable type to int32_t. Reviewed-by: Harry Wentland Acked-by: Tom Chung Signed-off-by: Hersen Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Check gpio_id before used as array index

2024-05-02T20:18:16Z

[WHY & HOW] GPIO_ID_UNKNOWN (-1) is not a valid value for array index and therefore should be checked in advance. This fixes 5 OVERRUN issues reported by Coverity. Reviewed-by: Harry Wentland Acked-by: Tom Chung Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Update comments in DC

2024-04-30T13:44:55Z

This commit adds, updates, and removes some of the comments used in the DC code. Signed-off-by: Rodrigo Siqueira Acked-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher