| Message ID | 20220523213837.1016542-7-marijn.suijten@somainline.org (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | drm/msm/dsi_phy: Replace parent names with clk_hw pointers | expand |
On Tue, 24 May 2022 at 00:38, Marijn Suijten <marijn.suijten@somainline.org> wrote: > > The clock names formatted into the hw_clk's init structure are only used > for the duration of the registration function where they are kstrdup'ed, > making it unnecessary to keep the allocations alive for the duration of > the device (through devm). > > Just like the other DSI PHY PLL clock trees, use a stack-local char > array and save on memory outside of the pll_28nm_register function. > > Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Nit: we can use clk_name instead of vco_name too. > --- > drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c | 10 +--------- > 1 file changed, 1 insertion(+), 9 deletions(-) > > diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c > index 943a7e847c90..554978fc434d 100644 > --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c > +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c > @@ -383,7 +383,7 @@ static int dsi_28nm_pll_restore_state(struct msm_dsi_phy *phy) > > static int pll_28nm_register(struct dsi_pll_28nm *pll_28nm, struct clk_hw **provided_clocks) > { > - char *clk_name, *vco_name; > + char clk_name[32], vco_name[32]; > struct clk_init_data vco_init = { > .parent_data = &(const struct clk_parent_data) { > .fw_name = "ref", > @@ -404,14 +404,6 @@ static int pll_28nm_register(struct dsi_pll_28nm *pll_28nm, struct clk_hw **prov > if (!bytediv) > return -ENOMEM; > > - vco_name = devm_kzalloc(dev, 32, GFP_KERNEL); > - if (!vco_name) > - return -ENOMEM; > - > - clk_name = devm_kzalloc(dev, 32, GFP_KERNEL); > - if (!clk_name) > - return -ENOMEM; > - > snprintf(vco_name, 32, "dsi%dvco_clk", pll_28nm->phy->id); > vco_init.name = vco_name; > > -- > 2.36.1 >
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c index 943a7e847c90..554978fc434d 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c @@ -383,7 +383,7 @@ static int dsi_28nm_pll_restore_state(struct msm_dsi_phy *phy) static int pll_28nm_register(struct dsi_pll_28nm *pll_28nm, struct clk_hw **provided_clocks) { - char *clk_name, *vco_name; + char clk_name[32], vco_name[32]; struct clk_init_data vco_init = { .parent_data = &(const struct clk_parent_data) { .fw_name = "ref", @@ -404,14 +404,6 @@ static int pll_28nm_register(struct dsi_pll_28nm *pll_28nm, struct clk_hw **prov if (!bytediv) return -ENOMEM; - vco_name = devm_kzalloc(dev, 32, GFP_KERNEL); - if (!vco_name) - return -ENOMEM; - - clk_name = devm_kzalloc(dev, 32, GFP_KERNEL); - if (!clk_name) - return -ENOMEM; - snprintf(vco_name, 32, "dsi%dvco_clk", pll_28nm->phy->id); vco_init.name = vco_name;
The clock names formatted into the hw_clk's init structure are only used for the duration of the registration function where they are kstrdup'ed, making it unnecessary to keep the allocations alive for the duration of the device (through devm). Just like the other DSI PHY PLL clock trees, use a stack-local char array and save on memory outside of the pll_28nm_register function. Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org> --- drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-)