Hi,
On 08/18/2015 11:04 PM, Bjorn Andersson wrote:
> In some configurations the supplies are voltage switches and not LDOs,
> making the set voltage call to fail. Check with the regulator framework
> if the supply can change voltage before attempting.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson at sonymobile.com>
> ---
> drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +-
> drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c
> b/drivers/gpu/drm/msm/dsi/dsi_host.c
> index 8c16d6a3ca78..ece3de6a8157 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
> @@ -278,7 +278,7 @@ static int dsi_regulator_init(struct msm_dsi_host
> *msm_host)
> }
>
> for (i = 0; i < num; i++) {
> - if ((regs[i].min_voltage >= 0) && (regs[i].max_voltage >= 0)) {
> + if (regulator_can_change_voltage(s[i].consumer)) {
> ret = regulator_set_voltage(s[i].consumer,
> regs[i].min_voltage, regs[i].max_voltage);
> if (ret < 0) {
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> index 401ff58d6893..f1f955f571fa 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> @@ -178,7 +178,7 @@ static int dsi_phy_regulator_init(struct msm_dsi_phy *phy)
> }
>
> for (i = 0; i < num; i++) {
> - if ((regs[i].min_voltage >= 0) && (regs[i].max_voltage >= 0)) {
> + if (regulator_can_change_voltage(s[i].consumer)) {
> ret = regulator_set_voltage(s[i].consumer,
> regs[i].min_voltage, regs[i].max_voltage);
> if (ret < 0) {
>
Looks good to me.
Reviewed-by: Archit Taneja <architt at codeaurora.org>
Archit
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