summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2022-11-04 11:22:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-11-04 11:22:44 -0700
commitdb385e0be4d7a737ddb793d2275a24735f4e9bd7 (patch)
treef0672772db7648675368e5bb21a49cae354cf27b /drivers
parentee6050c8af96bba2f81e8b0793a1fc2f998fcd20 (diff)
parentffa20aa581cf5377fc397b0d0ff9d67ea823629b (diff)
downloadlinux-db385e0be4d7a737ddb793d2275a24735f4e9bd7.tar.bz2
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd: "Fixes in clk drivers and some clk rate range fixes in the core as well: - Make sure the struct clk_rate_request is more sane - Remove a WARN_ON that was triggering for clks with no parents that can change frequency - Fix bad i2c bus transactions on Renesas rs9 - Actually return an error in clk_mt8195_topck_probe() on an error path - Keep the GPU memories powered while the clk isn't enabled on Qualcomm's sc7280 SoC - Fix the parent clk for HSCIF modules on Renesas' R-Car V4H SoC" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: qcom: Update the force mem core bit for GPU clocks clk: Initialize max_rate in struct clk_rate_request clk: Initialize the clk_rate_request even if clk_core is NULL clk: Remove WARN_ON NULL parent in clk_core_init_rate_req() clk: renesas: r8a779g0: Fix HSCIF parent clocks clk: renesas: r8a779g0: Add SASYNCPER clocks clk: mediatek: clk-mt8195-topckgen: Fix error return code in clk_mt8195_topck_probe() clk: sifive: select by default if SOC_SIFIVE clk: rs9: Fix I2C accessors
Diffstat (limited to 'drivers')
-rw-r--r--drivers/clk/clk-renesas-pcie.c65
-rw-r--r--drivers/clk/clk.c6
-rw-r--r--drivers/clk/mediatek/clk-mt8195-topckgen.c4
-rw-r--r--drivers/clk/qcom/gcc-sc7280.c1
-rw-r--r--drivers/clk/qcom/gpucc-sc7280.c1
-rw-r--r--drivers/clk/renesas/r8a779g0-cpg-mssr.c13
-rw-r--r--drivers/clk/sifive/Kconfig4
7 files changed, 84 insertions, 10 deletions
diff --git a/drivers/clk/clk-renesas-pcie.c b/drivers/clk/clk-renesas-pcie.c
index 4f5df1fc74b4..e6247141d0c0 100644
--- a/drivers/clk/clk-renesas-pcie.c
+++ b/drivers/clk/clk-renesas-pcie.c
@@ -90,13 +90,66 @@ static const struct regmap_access_table rs9_writeable_table = {
.n_yes_ranges = ARRAY_SIZE(rs9_writeable_ranges),
};
+static int rs9_regmap_i2c_write(void *context,
+ unsigned int reg, unsigned int val)
+{
+ struct i2c_client *i2c = context;
+ const u8 data[3] = { reg, 1, val };
+ const int count = ARRAY_SIZE(data);
+ int ret;
+
+ ret = i2c_master_send(i2c, data, count);
+ if (ret == count)
+ return 0;
+ else if (ret < 0)
+ return ret;
+ else
+ return -EIO;
+}
+
+static int rs9_regmap_i2c_read(void *context,
+ unsigned int reg, unsigned int *val)
+{
+ struct i2c_client *i2c = context;
+ struct i2c_msg xfer[2];
+ u8 txdata = reg;
+ u8 rxdata[2];
+ int ret;
+
+ xfer[0].addr = i2c->addr;
+ xfer[0].flags = 0;
+ xfer[0].len = 1;
+ xfer[0].buf = (void *)&txdata;
+
+ xfer[1].addr = i2c->addr;
+ xfer[1].flags = I2C_M_RD;
+ xfer[1].len = 2;
+ xfer[1].buf = (void *)rxdata;
+
+ ret = i2c_transfer(i2c->adapter, xfer, 2);
+ if (ret < 0)
+ return ret;
+ if (ret != 2)
+ return -EIO;
+
+ /*
+ * Byte 0 is transfer length, which is always 1 due
+ * to BCP register programming to 1 in rs9_probe(),
+ * ignore it and use data from Byte 1.
+ */
+ *val = rxdata[1];
+ return 0;
+}
+
static const struct regmap_config rs9_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
- .cache_type = REGCACHE_FLAT,
- .max_register = 0x8,
+ .cache_type = REGCACHE_NONE,
+ .max_register = RS9_REG_BCP,
.rd_table = &rs9_readable_table,
.wr_table = &rs9_writeable_table,
+ .reg_write = rs9_regmap_i2c_write,
+ .reg_read = rs9_regmap_i2c_read,
};
static int rs9_get_output_config(struct rs9_driver_data *rs9, int idx)
@@ -242,11 +295,17 @@ static int rs9_probe(struct i2c_client *client)
return ret;
}
- rs9->regmap = devm_regmap_init_i2c(client, &rs9_regmap_config);
+ rs9->regmap = devm_regmap_init(&client->dev, NULL,
+ client, &rs9_regmap_config);
if (IS_ERR(rs9->regmap))
return dev_err_probe(&client->dev, PTR_ERR(rs9->regmap),
"Failed to allocate register map\n");
+ /* Always read back 1 Byte via I2C */
+ ret = regmap_write(rs9->regmap, RS9_REG_BCP, 1);
+ if (ret < 0)
+ return ret;
+
/* Register clock */
for (i = 0; i < rs9->chip_info->num_clks; i++) {
snprintf(name, 5, "DIF%d", i);
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index c3c3f8c07258..57b83665e5c3 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1459,10 +1459,14 @@ static void clk_core_init_rate_req(struct clk_core * const core,
{
struct clk_core *parent;
- if (WARN_ON(!core || !req))
+ if (WARN_ON(!req))
return;
memset(req, 0, sizeof(*req));
+ req->max_rate = ULONG_MAX;
+
+ if (!core)
+ return;
req->rate = rate;
clk_core_get_boundaries(core, &req->min_rate, &req->max_rate);
diff --git a/drivers/clk/mediatek/clk-mt8195-topckgen.c b/drivers/clk/mediatek/clk-mt8195-topckgen.c
index 8cbab5ca2e58..1e016329c1d2 100644
--- a/drivers/clk/mediatek/clk-mt8195-topckgen.c
+++ b/drivers/clk/mediatek/clk-mt8195-topckgen.c
@@ -1270,8 +1270,10 @@ static int clk_mt8195_topck_probe(struct platform_device *pdev)
hw = devm_clk_hw_register_mux(&pdev->dev, "mfg_ck_fast_ref", mfg_fast_parents,
ARRAY_SIZE(mfg_fast_parents), CLK_SET_RATE_PARENT,
(base + 0x250), 8, 1, 0, &mt8195_clk_lock);
- if (IS_ERR(hw))
+ if (IS_ERR(hw)) {
+ r = PTR_ERR(hw);
goto unregister_muxes;
+ }
top_clk_data->hws[CLK_TOP_MFG_CK_FAST_REF] = hw;
r = clk_mt8195_reg_mfg_mux_notifier(&pdev->dev,
diff --git a/drivers/clk/qcom/gcc-sc7280.c b/drivers/clk/qcom/gcc-sc7280.c
index 8afb7575e712..46d41ebce2b0 100644
--- a/drivers/clk/qcom/gcc-sc7280.c
+++ b/drivers/clk/qcom/gcc-sc7280.c
@@ -3467,6 +3467,7 @@ static int gcc_sc7280_probe(struct platform_device *pdev)
regmap_update_bits(regmap, 0x28004, BIT(0), BIT(0));
regmap_update_bits(regmap, 0x28014, BIT(0), BIT(0));
regmap_update_bits(regmap, 0x71004, BIT(0), BIT(0));
+ regmap_update_bits(regmap, 0x7100C, BIT(13), BIT(13));
ret = qcom_cc_register_rcg_dfs(regmap, gcc_dfs_clocks,
ARRAY_SIZE(gcc_dfs_clocks));
diff --git a/drivers/clk/qcom/gpucc-sc7280.c b/drivers/clk/qcom/gpucc-sc7280.c
index 9a832f2bcf49..1490cd45a654 100644
--- a/drivers/clk/qcom/gpucc-sc7280.c
+++ b/drivers/clk/qcom/gpucc-sc7280.c
@@ -463,6 +463,7 @@ static int gpu_cc_sc7280_probe(struct platform_device *pdev)
*/
regmap_update_bits(regmap, 0x1170, BIT(0), BIT(0));
regmap_update_bits(regmap, 0x1098, BIT(0), BIT(0));
+ regmap_update_bits(regmap, 0x1098, BIT(13), BIT(13));
return qcom_cc_really_probe(pdev, &gpu_cc_sc7280_desc, regmap);
}
diff --git a/drivers/clk/renesas/r8a779g0-cpg-mssr.c b/drivers/clk/renesas/r8a779g0-cpg-mssr.c
index 9641122133b5..d5b325e3c539 100644
--- a/drivers/clk/renesas/r8a779g0-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a779g0-cpg-mssr.c
@@ -47,6 +47,7 @@ enum clk_ids {
CLK_S0_VIO,
CLK_S0_VC,
CLK_S0_HSC,
+ CLK_SASYNCPER,
CLK_SV_VIP,
CLK_SV_IR,
CLK_SDSRC,
@@ -84,6 +85,7 @@ static const struct cpg_core_clk r8a779g0_core_clks[] __initconst = {
DEF_FIXED(".s0_vio", CLK_S0_VIO, CLK_PLL1_DIV2, 2, 1),
DEF_FIXED(".s0_vc", CLK_S0_VC, CLK_PLL1_DIV2, 2, 1),
DEF_FIXED(".s0_hsc", CLK_S0_HSC, CLK_PLL1_DIV2, 2, 1),
+ DEF_FIXED(".sasyncper", CLK_SASYNCPER, CLK_PLL5_DIV4, 3, 1),
DEF_FIXED(".sv_vip", CLK_SV_VIP, CLK_PLL1, 5, 1),
DEF_FIXED(".sv_ir", CLK_SV_IR, CLK_PLL1, 5, 1),
DEF_BASE(".sdsrc", CLK_SDSRC, CLK_TYPE_GEN4_SDSRC, CLK_PLL5),
@@ -128,6 +130,9 @@ static const struct cpg_core_clk r8a779g0_core_clks[] __initconst = {
DEF_FIXED("s0d4_hsc", R8A779G0_CLK_S0D4_HSC, CLK_S0_HSC, 4, 1),
DEF_FIXED("cl16m_hsc", R8A779G0_CLK_CL16M_HSC, CLK_S0_HSC, 48, 1),
DEF_FIXED("s0d2_cc", R8A779G0_CLK_S0D2_CC, CLK_S0, 2, 1),
+ DEF_FIXED("sasyncperd1",R8A779G0_CLK_SASYNCPERD1, CLK_SASYNCPER,1, 1),
+ DEF_FIXED("sasyncperd2",R8A779G0_CLK_SASYNCPERD2, CLK_SASYNCPER,2, 1),
+ DEF_FIXED("sasyncperd4",R8A779G0_CLK_SASYNCPERD4, CLK_SASYNCPER,4, 1),
DEF_FIXED("svd1_ir", R8A779G0_CLK_SVD1_IR, CLK_SV_IR, 1, 1),
DEF_FIXED("svd2_ir", R8A779G0_CLK_SVD2_IR, CLK_SV_IR, 2, 1),
DEF_FIXED("svd1_vip", R8A779G0_CLK_SVD1_VIP, CLK_SV_VIP, 1, 1),
@@ -153,10 +158,10 @@ static const struct mssr_mod_clk r8a779g0_mod_clks[] __initconst = {
DEF_MOD("avb0", 211, R8A779G0_CLK_S0D4_HSC),
DEF_MOD("avb1", 212, R8A779G0_CLK_S0D4_HSC),
DEF_MOD("avb2", 213, R8A779G0_CLK_S0D4_HSC),
- DEF_MOD("hscif0", 514, R8A779G0_CLK_S0D3_PER),
- DEF_MOD("hscif1", 515, R8A779G0_CLK_S0D3_PER),
- DEF_MOD("hscif2", 516, R8A779G0_CLK_S0D3_PER),
- DEF_MOD("hscif3", 517, R8A779G0_CLK_S0D3_PER),
+ DEF_MOD("hscif0", 514, R8A779G0_CLK_SASYNCPERD1),
+ DEF_MOD("hscif1", 515, R8A779G0_CLK_SASYNCPERD1),
+ DEF_MOD("hscif2", 516, R8A779G0_CLK_SASYNCPERD1),
+ DEF_MOD("hscif3", 517, R8A779G0_CLK_SASYNCPERD1),
DEF_MOD("i2c0", 518, R8A779G0_CLK_S0D6_PER),
DEF_MOD("i2c1", 519, R8A779G0_CLK_S0D6_PER),
DEF_MOD("i2c2", 520, R8A779G0_CLK_S0D6_PER),
diff --git a/drivers/clk/sifive/Kconfig b/drivers/clk/sifive/Kconfig
index 9132c3c4aa86..b7fde0aadfcb 100644
--- a/drivers/clk/sifive/Kconfig
+++ b/drivers/clk/sifive/Kconfig
@@ -2,7 +2,8 @@
menuconfig CLK_SIFIVE
bool "SiFive SoC driver support"
- depends on RISCV || COMPILE_TEST
+ depends on SOC_SIFIVE || COMPILE_TEST
+ default SOC_SIFIVE
help
SoC drivers for SiFive Linux-capable SoCs.
@@ -10,6 +11,7 @@ if CLK_SIFIVE
config CLK_SIFIVE_PRCI
bool "PRCI driver for SiFive SoCs"
+ default SOC_SIFIVE
select RESET_CONTROLLER
select RESET_SIMPLE
select CLK_ANALOGBITS_WRPLL_CLN28HPC