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- system suspend related fixes for the exynos542x clocks driver

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- probe() error paths fixes in the exynos5433 CMU driver adding
    proper release of memory and clk resources
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Merge tag 'clk-v5.4-samsung-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-fixes

Pull Samsung clk driver fixes from Sylwester Nawrocki:

 - system suspend related fixes for the exynos542x clocks driver
 - probe() error paths fixes in the exynos5433 CMU driver adding
   proper release of memory and clk resources

* tag 'clk-v5.4-samsung-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
  clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume
  clk: samsung: exynos542x: Move G3D subsystem clocks to its sub-CMU
  clk: samsung: exynos5433: Fix error paths
This commit is contained in:
Stephen Boyd 2019-11-04 09:59:16 -08:00
commit 5a60b5aa96
2 changed files with 37 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/clk/samsung/clk-exynos5420.c
View File

@ -165,12 +165,18 @@ static const unsigned long exynos5x_clk_regs[] __initconst = {
GATE_BUS_CPU,
GATE_SCLK_CPU,
CLKOUT_CMU_CPU,
CPLL_CON0,
DPLL_CON0,
EPLL_CON0,
EPLL_CON1,
EPLL_CON2,
RPLL_CON0,
RPLL_CON1,
RPLL_CON2,
IPLL_CON0,
SPLL_CON0,
VPLL_CON0,
MPLL_CON0,
SRC_TOP0,
SRC_TOP1,
SRC_TOP2,
@ -1172,8 +1178,6 @@ static const struct samsung_gate_clock exynos5x_gate_clks[] __initconst = {
GATE(CLK_SCLK_ISP_SENSOR2, "sclk_isp_sensor2", "dout_isp_sensor2",
GATE_TOP_SCLK_ISP, 12, CLK_SET_RATE_PARENT, 0),
GATE(CLK_G3D, "g3d", "mout_user_aclk_g3d", GATE_IP_G3D, 9, 0, 0),
/* CDREX */
GATE(CLK_CLKM_PHY0, "clkm_phy0", "dout_sclk_cdrex",
GATE_BUS_CDREX0, 0, 0, 0),
@ -1248,6 +1252,15 @@ static struct exynos5_subcmu_reg_dump exynos5x_gsc_suspend_regs[] = {
{ DIV2_RATIO0, 0, 0x30 }, /* DIV dout_gscl_blk_300 */
};
static const struct samsung_gate_clock exynos5x_g3d_gate_clks[] __initconst = {
GATE(CLK_G3D, "g3d", "mout_user_aclk_g3d", GATE_IP_G3D, 9, 0, 0),
};
static struct exynos5_subcmu_reg_dump exynos5x_g3d_suspend_regs[] = {
{ GATE_IP_G3D, 0x3ff, 0x3ff }, /* G3D gates */
{ SRC_TOP5, 0, BIT(16) }, /* MUX mout_user_aclk_g3d */
};
static const struct samsung_div_clock exynos5x_mfc_div_clks[] __initconst = {
DIV(0, "dout_mfc_blk", "mout_user_aclk333", DIV4_RATIO, 0, 2),
};
@ -1320,6 +1333,14 @@ static const struct exynos5_subcmu_info exynos5x_gsc_subcmu = {
.pd_name = "GSC",
};
static const struct exynos5_subcmu_info exynos5x_g3d_subcmu = {
.gate_clks = exynos5x_g3d_gate_clks,
.nr_gate_clks = ARRAY_SIZE(exynos5x_g3d_gate_clks),
.suspend_regs = exynos5x_g3d_suspend_regs,
.nr_suspend_regs = ARRAY_SIZE(exynos5x_g3d_suspend_regs),
.pd_name = "G3D",
};
static const struct exynos5_subcmu_info exynos5x_mfc_subcmu = {
.div_clks = exynos5x_mfc_div_clks,
.nr_div_clks = ARRAY_SIZE(exynos5x_mfc_div_clks),
@ -1351,6 +1372,7 @@ static const struct exynos5_subcmu_info exynos5800_mau_subcmu = {
static const struct exynos5_subcmu_info *exynos5x_subcmus[] = {
&exynos5x_disp_subcmu,
&exynos5x_gsc_subcmu,
&exynos5x_g3d_subcmu,
&exynos5x_mfc_subcmu,
&exynos5x_mscl_subcmu,
};
@ -1358,6 +1380,7 @@ static const struct exynos5_subcmu_info *exynos5x_subcmus[] = {
static const struct exynos5_subcmu_info *exynos5800_subcmus[] = {
&exynos5x_disp_subcmu,
&exynos5x_gsc_subcmu,
&exynos5x_g3d_subcmu,
&exynos5x_mfc_subcmu,
&exynos5x_mscl_subcmu,
&exynos5800_mau_subcmu,

14
drivers/clk/samsung/clk-exynos5433.c
View File

@ -13,6 +13,7 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <dt-bindings/clock/exynos5433.h>
@ -5584,6 +5585,8 @@ static int __init exynos5433_cmu_probe(struct platform_device *pdev)
data->clk_save = samsung_clk_alloc_reg_dump(info->clk_regs,
info->nr_clk_regs);
if (!data->clk_save)
return -ENOMEM;
data->nr_clk_save = info->nr_clk_regs;
data->clk_suspend = info->suspend_regs;
data->nr_clk_suspend = info->nr_suspend_regs;
@ -5592,12 +5595,19 @@ static int __init exynos5433_cmu_probe(struct platform_device *pdev)
if (data->nr_pclks > 0) {
data->pclks = devm_kcalloc(dev, sizeof(struct clk *),
data->nr_pclks, GFP_KERNEL);
if (!data->pclks) {
kfree(data->clk_save);
return -ENOMEM;
}
for (i = 0; i < data->nr_pclks; i++) {
struct clk *clk = of_clk_get(dev->of_node, i);
if (IS_ERR(clk))
if (IS_ERR(clk)) {
kfree(data->clk_save);
while (--i >= 0)
clk_put(data->pclks[i]);
return PTR_ERR(clk);
}
data->pclks[i] = clk;
}
}