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authorAlex Deucher <alexdeucher@gmail.com>2010-11-18 17:18:08 -0500
committerDave Airlie <airlied@redhat.com>2010-11-19 09:02:05 +1000
commitbe66305718bee9927e6acc6b75618ce3cd745718 (patch)
tree4c8514b1ec0e502261f84cee0ce13581a3f4f6cf /drivers/gpu
parent95ccb0f3bdc4438bf470c25450e6a8a6090ca253 (diff)
drm/radeon/kms: fix i2c pad masks on rs4xx
These got lost in the last i2c cleanup. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=23222 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/radeon/radeon_combios.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 7b7ea269549c..3bddea5b5295 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -571,6 +571,7 @@ static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rde
}
if (clk_mask && data_mask) {
+ /* system specific masks */
i2c.mask_clk_mask = clk_mask;
i2c.mask_data_mask = data_mask;
i2c.a_clk_mask = clk_mask;
@@ -579,7 +580,19 @@ static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rde
i2c.en_data_mask = data_mask;
i2c.y_clk_mask = clk_mask;
i2c.y_data_mask = data_mask;
+ } else if ((ddc_line == RADEON_GPIOPAD_MASK) ||
+ (ddc_line == RADEON_MDGPIO_MASK)) {
+ /* default gpiopad masks */
+ i2c.mask_clk_mask = (0x20 << 8);
+ i2c.mask_data_mask = 0x80;
+ i2c.a_clk_mask = (0x20 << 8);
+ i2c.a_data_mask = 0x80;
+ i2c.en_clk_mask = (0x20 << 8);
+ i2c.en_data_mask = 0x80;
+ i2c.y_clk_mask = (0x20 << 8);
+ i2c.y_data_mask = 0x80;
} else {
+ /* default masks for ddc pads */
i2c.mask_clk_mask = RADEON_GPIO_EN_1;
i2c.mask_data_mask = RADEON_GPIO_EN_0;
i2c.a_clk_mask = RADEON_GPIO_A_1;