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authorArchit Taneja <architt@codeaurora.org>2016-04-29 15:19:35 +0530
committerRob Clark <robdclark@gmail.com>2016-05-08 10:22:17 -0400
commitf377d59729e744122751977eb79b349d2e166095 (patch)
tree0c5b7ef36440951d2d566d9e800d5d89d9020ae6 /drivers/gpu/drm/msm/dsi/dsi.h
parentd6c925cada0d92e49c3473bc0a69ea3913fff905 (diff)
drm/msm/dsi: Fix regulator API abuse
The voltage changing code in this driver is broken and should be removed. The driver sets a single, exact voltage on probe. Unless there is a very good reason for this (which should be documented in comments) constraints like this need to be set via the machine constraints, voltage setting in a driver is expected to be used in cases where the voltage varies at runtime. In addition client drivers should almost never be calling regulator_can_set_voltage(), if the device needs to set a voltage it needs to set the voltage and the regulator core will handle the case where the regulator is fixed voltage. If the driver simply skips setting the voltage if it doesn't have permission then it should just not bother in the first place. Originally authored by Mark Brown <broonie@kernel.org> Remove the min/max voltage data entries per SoC managed by the driver. These aren't needed as we don't try to set voltages any more. Mention in comments the voltages that each regulator expects. Signed-off-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/dsi/dsi.h')
-rw-r--r--drivers/gpu/drm/msm/dsi/dsi.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h
index 749fbb28ec3d..03f115f532c2 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.h
+++ b/drivers/gpu/drm/msm/dsi/dsi.h
@@ -41,8 +41,6 @@ enum msm_dsi_phy_type {
/* Regulators for DSI devices */
struct dsi_reg_entry {
char name[32];
- int min_voltage;
- int max_voltage;
int enable_load;
int disable_load;
};