* [PATCH 0/7] soc: amlogic: clk-measure: Add clk-measure support for C3 and S4
@ 2025-04-11 12:42 Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 1/7] soc: amlogic: clk-measure: Define MSR_CLK's register offset separately Chuan Liu via B4 Relay
` (6 more replies)
0 siblings, 7 replies; 12+ messages in thread
From: Chuan Liu via B4 Relay @ 2025-04-11 12:42 UTC (permalink / raw)
To: Neil Armstrong, Kevin Hilman, Jerome Brunet, Martin Blumenstingl,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-kernel, linux-amlogic, linux-kernel, devicetree,
Chuan Liu
Add clk-measure support for C3/S4 SoCs.
Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
---
Chuan Liu (7):
soc: amlogic: clk-measure: Define MSR_CLK's register offset separately
dt-bindings: soc: amlogic: C3 supports clk-measure
dt-bindings: soc: amlogic: S4 supports clk-measure
soc: amlogic: clk-measure: Add support for C3
soc: amlogic: clk-measure: Add support for S4
arm64: dts: amlogic: C3: Add clk-measure controller node
arm64: dts: amlogic: S4: Add clk-measure controller node
.../soc/amlogic/amlogic,meson-gx-clk-measure.yaml | 2 +
arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi | 5 +
arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 5 +
drivers/soc/amlogic/meson-clk-measure.c | 399 ++++++++++++++++++++-
4 files changed, 396 insertions(+), 15 deletions(-)
---
base-commit: 37021be47d02d2913d6767795a6f4c72b4e63a4f
change-id: 20250411-clk-measure-d33c5ab62669
Best regards,
--
Chuan Liu <chuan.liu@amlogic.com>
^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH 1/7] soc: amlogic: clk-measure: Define MSR_CLK's register offset separately
2025-04-11 12:42 [PATCH 0/7] soc: amlogic: clk-measure: Add clk-measure support for C3 and S4 Chuan Liu via B4 Relay
@ 2025-04-11 12:42 ` Chuan Liu via B4 Relay
2025-04-11 13:31 ` Neil Armstrong
2025-04-11 12:42 ` [PATCH 2/7] dt-bindings: soc: amlogic: C3 supports clk-measure Chuan Liu via B4 Relay
` (5 subsequent siblings)
6 siblings, 1 reply; 12+ messages in thread
From: Chuan Liu via B4 Relay @ 2025-04-11 12:42 UTC (permalink / raw)
To: Neil Armstrong, Kevin Hilman, Jerome Brunet, Martin Blumenstingl,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-kernel, linux-amlogic, linux-kernel, devicetree,
Chuan Liu
From: Chuan Liu <chuan.liu@amlogic.com>
Since the MSR_CLK register offset differs between chip variants, we
replace the macro-based definition with chip-specific assignments.
Change the max_register in regmap_config to be retrieved from DTS.
Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
---
drivers/soc/amlogic/meson-clk-measure.c | 70 ++++++++++++++++++++++++++-------
1 file changed, 55 insertions(+), 15 deletions(-)
diff --git a/drivers/soc/amlogic/meson-clk-measure.c b/drivers/soc/amlogic/meson-clk-measure.c
index 39638d6a593c..30387d26307c 100644
--- a/drivers/soc/amlogic/meson-clk-measure.c
+++ b/drivers/soc/amlogic/meson-clk-measure.c
@@ -14,11 +14,6 @@
static DEFINE_MUTEX(measure_lock);
-#define MSR_CLK_DUTY 0x0
-#define MSR_CLK_REG0 0x4
-#define MSR_CLK_REG1 0x8
-#define MSR_CLK_REG2 0xc
-
#define MSR_DURATION GENMASK(15, 0)
#define MSR_ENABLE BIT(16)
#define MSR_CONT BIT(17) /* continuous measurement */
@@ -39,9 +34,20 @@ struct meson_msr_id {
const char *name;
};
+struct msr_reg_offset {
+ unsigned int duty;
+ unsigned int reg0;
+ unsigned int reg1;
+ unsigned int reg2;
+ unsigned int reg3;
+ unsigned int reg4;
+ unsigned int reg5;
+};
+
struct meson_msr_data {
struct meson_msr_id *msr_table;
unsigned int msr_count;
+ struct msr_reg_offset reg;
};
struct meson_msr {
@@ -495,6 +501,7 @@ static int meson_measure_id(struct meson_msr_id *clk_msr_id,
unsigned int duration)
{
struct meson_msr *priv = clk_msr_id->priv;
+ struct msr_reg_offset *reg = &priv->data.reg;
unsigned int val;
int ret;
@@ -502,22 +509,22 @@ static int meson_measure_id(struct meson_msr_id *clk_msr_id,
if (ret)
return ret;
- regmap_write(priv->regmap, MSR_CLK_REG0, 0);
+ regmap_write(priv->regmap, reg->reg0, 0);
/* Set measurement duration */
- regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_DURATION,
+ regmap_update_bits(priv->regmap, reg->reg0, MSR_DURATION,
FIELD_PREP(MSR_DURATION, duration - 1));
/* Set ID */
- regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_CLK_SRC,
+ regmap_update_bits(priv->regmap, reg->reg0, MSR_CLK_SRC,
FIELD_PREP(MSR_CLK_SRC, clk_msr_id->id));
/* Enable & Start */
- regmap_update_bits(priv->regmap, MSR_CLK_REG0,
+ regmap_update_bits(priv->regmap, reg->reg0,
MSR_RUN | MSR_ENABLE,
MSR_RUN | MSR_ENABLE);
- ret = regmap_read_poll_timeout(priv->regmap, MSR_CLK_REG0,
+ ret = regmap_read_poll_timeout(priv->regmap, reg->reg0,
val, !(val & MSR_BUSY), 10, 10000);
if (ret) {
mutex_unlock(&measure_lock);
@@ -525,10 +532,10 @@ static int meson_measure_id(struct meson_msr_id *clk_msr_id,
}
/* Disable */
- regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_ENABLE, 0);
+ regmap_update_bits(priv->regmap, reg->reg0, MSR_ENABLE, 0);
/* Get the value in multiple of gate time counts */
- regmap_read(priv->regmap, MSR_CLK_REG2, &val);
+ regmap_read(priv->regmap, reg->reg2, &val);
mutex_unlock(&measure_lock);
@@ -599,11 +606,10 @@ static int clk_msr_summary_show(struct seq_file *s, void *data)
}
DEFINE_SHOW_ATTRIBUTE(clk_msr_summary);
-static const struct regmap_config meson_clk_msr_regmap_config = {
+static struct regmap_config meson_clk_msr_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
- .max_register = MSR_CLK_REG2,
};
static int meson_msr_probe(struct platform_device *pdev)
@@ -611,6 +617,7 @@ static int meson_msr_probe(struct platform_device *pdev)
const struct meson_msr_data *match_data;
struct meson_msr *priv;
struct dentry *root, *clks;
+ struct resource *res;
void __iomem *base;
int i;
@@ -636,15 +643,18 @@ static int meson_msr_probe(struct platform_device *pdev)
match_data->msr_count * sizeof(struct meson_msr_id));
priv->data.msr_count = match_data->msr_count;
- base = devm_platform_ioremap_resource(pdev, 0);
+ base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(base))
return PTR_ERR(base);
+ meson_clk_msr_regmap_config.max_register = resource_size(res) - 4;
priv->regmap = devm_regmap_init_mmio(&pdev->dev, base,
&meson_clk_msr_regmap_config);
if (IS_ERR(priv->regmap))
return PTR_ERR(priv->regmap);
+ memcpy(&priv->data.reg, &match_data->reg, sizeof(struct msr_reg_offset));
+
root = debugfs_create_dir("meson-clk-msr", NULL);
clks = debugfs_create_dir("clks", root);
@@ -667,26 +677,56 @@ static int meson_msr_probe(struct platform_device *pdev)
static const struct meson_msr_data clk_msr_gx_data = {
.msr_table = (void *)clk_msr_gx,
.msr_count = ARRAY_SIZE(clk_msr_gx),
+ .reg = {
+ .duty = 0x0,
+ .reg0 = 0x4,
+ .reg1 = 0x8,
+ .reg2 = 0xc,
+ },
};
static const struct meson_msr_data clk_msr_m8_data = {
.msr_table = (void *)clk_msr_m8,
.msr_count = ARRAY_SIZE(clk_msr_m8),
+ .reg = {
+ .duty = 0x0,
+ .reg0 = 0x4,
+ .reg1 = 0x8,
+ .reg2 = 0xc,
+ },
};
static const struct meson_msr_data clk_msr_axg_data = {
.msr_table = (void *)clk_msr_axg,
.msr_count = ARRAY_SIZE(clk_msr_axg),
+ .reg = {
+ .duty = 0x0,
+ .reg0 = 0x4,
+ .reg1 = 0x8,
+ .reg2 = 0xc,
+ },
};
static const struct meson_msr_data clk_msr_g12a_data = {
.msr_table = (void *)clk_msr_g12a,
.msr_count = ARRAY_SIZE(clk_msr_g12a),
+ .reg = {
+ .duty = 0x0,
+ .reg0 = 0x4,
+ .reg1 = 0x8,
+ .reg2 = 0xc,
+ },
};
static const struct meson_msr_data clk_msr_sm1_data = {
.msr_table = (void *)clk_msr_sm1,
.msr_count = ARRAY_SIZE(clk_msr_sm1),
+ .reg = {
+ .duty = 0x0,
+ .reg0 = 0x4,
+ .reg1 = 0x8,
+ .reg2 = 0xc,
+ },
};
static const struct of_device_id meson_msr_match_table[] = {
--
2.42.0
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 2/7] dt-bindings: soc: amlogic: C3 supports clk-measure
2025-04-11 12:42 [PATCH 0/7] soc: amlogic: clk-measure: Add clk-measure support for C3 and S4 Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 1/7] soc: amlogic: clk-measure: Define MSR_CLK's register offset separately Chuan Liu via B4 Relay
@ 2025-04-11 12:42 ` Chuan Liu via B4 Relay
2025-04-11 20:55 ` Rob Herring (Arm)
2025-04-11 12:42 ` [PATCH 3/7] dt-bindings: soc: amlogic: S4 " Chuan Liu via B4 Relay
` (4 subsequent siblings)
6 siblings, 1 reply; 12+ messages in thread
From: Chuan Liu via B4 Relay @ 2025-04-11 12:42 UTC (permalink / raw)
To: Neil Armstrong, Kevin Hilman, Jerome Brunet, Martin Blumenstingl,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-kernel, linux-amlogic, linux-kernel, devicetree,
Chuan Liu
From: Chuan Liu <chuan.liu@amlogic.com>
C3 adds support for clk-measure.
Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
---
.../devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml b/Documentation/devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml
index 77c281153010..275afe7fe374 100644
--- a/Documentation/devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml
+++ b/Documentation/devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml
@@ -22,6 +22,7 @@ properties:
- amlogic,meson-axg-clk-measure
- amlogic,meson-g12a-clk-measure
- amlogic,meson-sm1-clk-measure
+ - amlogic,c3-clk-measure
reg:
maxItems: 1
--
2.42.0
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 3/7] dt-bindings: soc: amlogic: S4 supports clk-measure
2025-04-11 12:42 [PATCH 0/7] soc: amlogic: clk-measure: Add clk-measure support for C3 and S4 Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 1/7] soc: amlogic: clk-measure: Define MSR_CLK's register offset separately Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 2/7] dt-bindings: soc: amlogic: C3 supports clk-measure Chuan Liu via B4 Relay
@ 2025-04-11 12:42 ` Chuan Liu via B4 Relay
2025-04-11 20:55 ` Rob Herring (Arm)
2025-04-11 12:42 ` [PATCH 4/7] soc: amlogic: clk-measure: Add support for C3 Chuan Liu via B4 Relay
` (3 subsequent siblings)
6 siblings, 1 reply; 12+ messages in thread
From: Chuan Liu via B4 Relay @ 2025-04-11 12:42 UTC (permalink / raw)
To: Neil Armstrong, Kevin Hilman, Jerome Brunet, Martin Blumenstingl,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-kernel, linux-amlogic, linux-kernel, devicetree,
Chuan Liu
From: Chuan Liu <chuan.liu@amlogic.com>
S4 adds support for clk-measure.
Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
---
.../devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml b/Documentation/devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml
index 275afe7fe374..39d4637c2d08 100644
--- a/Documentation/devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml
+++ b/Documentation/devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml
@@ -23,6 +23,7 @@ properties:
- amlogic,meson-g12a-clk-measure
- amlogic,meson-sm1-clk-measure
- amlogic,c3-clk-measure
+ - amlogic,s4-clk-measure
reg:
maxItems: 1
--
2.42.0
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 4/7] soc: amlogic: clk-measure: Add support for C3
2025-04-11 12:42 [PATCH 0/7] soc: amlogic: clk-measure: Add clk-measure support for C3 and S4 Chuan Liu via B4 Relay
` (2 preceding siblings ...)
2025-04-11 12:42 ` [PATCH 3/7] dt-bindings: soc: amlogic: S4 " Chuan Liu via B4 Relay
@ 2025-04-11 12:42 ` Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 5/7] soc: amlogic: clk-measure: Add support for S4 Chuan Liu via B4 Relay
` (2 subsequent siblings)
6 siblings, 0 replies; 12+ messages in thread
From: Chuan Liu via B4 Relay @ 2025-04-11 12:42 UTC (permalink / raw)
To: Neil Armstrong, Kevin Hilman, Jerome Brunet, Martin Blumenstingl,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-kernel, linux-amlogic, linux-kernel, devicetree,
Chuan Liu
From: Chuan Liu <chuan.liu@amlogic.com>
Add the clk-measurer clocks IDs for the Amlogic C3 SoC family.
Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
---
drivers/soc/amlogic/meson-clk-measure.c | 158 ++++++++++++++++++++++++++++++++
1 file changed, 158 insertions(+)
diff --git a/drivers/soc/amlogic/meson-clk-measure.c b/drivers/soc/amlogic/meson-clk-measure.c
index 30387d26307c..c6daddb8f1b8 100644
--- a/drivers/soc/amlogic/meson-clk-measure.c
+++ b/drivers/soc/amlogic/meson-clk-measure.c
@@ -497,6 +497,146 @@ static const struct meson_msr_id clk_msr_sm1[] = {
CLK_MSR_ID(127, "csi2_data"),
};
+static const struct meson_msr_id clk_msr_c3[] = {
+ CLK_MSR_ID(0, "sys_clk"),
+ CLK_MSR_ID(1, "axi_clk"),
+ CLK_MSR_ID(2, "rtc_clk"),
+ CLK_MSR_ID(3, "p20_usb2_ckout"),
+ CLK_MSR_ID(4, "eth_mpll_test"),
+ CLK_MSR_ID(5, "sys_pll"),
+ CLK_MSR_ID(6, "cpu_clk_div16"),
+ CLK_MSR_ID(7, "ts_pll"),
+ CLK_MSR_ID(8, "fclk_div2"),
+ CLK_MSR_ID(9, "fclk_div2p5"),
+ CLK_MSR_ID(10, "fclk_div3"),
+ CLK_MSR_ID(11, "fclk_div4"),
+ CLK_MSR_ID(12, "fclk_div5"),
+ CLK_MSR_ID(13, "fclk_div7"),
+ CLK_MSR_ID(15, "fclk_50m"),
+ CLK_MSR_ID(16, "sys_oscin32k_i"),
+ CLK_MSR_ID(17, "mclk_pll"),
+ CLK_MSR_ID(19, "hifi_pll"),
+ CLK_MSR_ID(20, "gp0_pll"),
+ CLK_MSR_ID(21, "gp1_pll"),
+ CLK_MSR_ID(22, "eth_mppll_50m_ckout"),
+ CLK_MSR_ID(23, "sys_pll_div16"),
+ CLK_MSR_ID(24, "ddr_dpll_pt_clk"),
+ CLK_MSR_ID(26, "nna_core"),
+ CLK_MSR_ID(27, "rtc_sec_pulse_out"),
+ CLK_MSR_ID(28, "rtc_osc_clk_out"),
+ CLK_MSR_ID(29, "debug_in_clk"),
+ CLK_MSR_ID(30, "mod_eth_phy_ref_clk"),
+ CLK_MSR_ID(31, "mod_eth_tx_clk"),
+ CLK_MSR_ID(32, "eth_125m"),
+ CLK_MSR_ID(33, "eth_rmii"),
+ CLK_MSR_ID(34, "co_clkin_to_mac"),
+ CLK_MSR_ID(36, "co_rx_clk"),
+ CLK_MSR_ID(37, "co_tx_clk"),
+ CLK_MSR_ID(38, "eth_phy_rxclk"),
+ CLK_MSR_ID(39, "eth_phy_plltxclk"),
+ CLK_MSR_ID(40, "ephy_test_clk"),
+ CLK_MSR_ID(66, "vapb"),
+ CLK_MSR_ID(67, "ge2d"),
+ CLK_MSR_ID(68, "dewarpa"),
+ CLK_MSR_ID(70, "mipi_dsi_meas"),
+ CLK_MSR_ID(71, "dsi_phy"),
+ CLK_MSR_ID(79, "rama"),
+ CLK_MSR_ID(94, "vc9000e_core"),
+ CLK_MSR_ID(95, "vc9000e_sys"),
+ CLK_MSR_ID(96, "vc9000e_aclk"),
+ CLK_MSR_ID(97, "hcodec"),
+ CLK_MSR_ID(106, "deskew_pll_clk_div32_out"),
+ CLK_MSR_ID(107, "mipi_csi_phy_clk_out[0]"),
+ CLK_MSR_ID(108, "mipi_csi_phy_clk_out[1]"),
+ CLK_MSR_ID(110, "spifc"),
+ CLK_MSR_ID(111, "saradc"),
+ CLK_MSR_ID(112, "ts"),
+ CLK_MSR_ID(113, "sd_emmc_c"),
+ CLK_MSR_ID(114, "sd_emmc_b"),
+ CLK_MSR_ID(115, "sd_emmc_a"),
+ CLK_MSR_ID(116, "gpio_msr_clk"),
+ CLK_MSR_ID(117, "spicc_b"),
+ CLK_MSR_ID(118, "spicc_a"),
+ CLK_MSR_ID(122, "mod_audio_pdm_dclk_o"),
+ CLK_MSR_ID(124, "o_earcrx_dmac_clk"),
+ CLK_MSR_ID(125, "o_earcrx_cmdc_clk"),
+ CLK_MSR_ID(126, "o_earctx_dmac_clk"),
+ CLK_MSR_ID(127, "o_earctx_cmdc_clk"),
+ CLK_MSR_ID(128, "o_tohdmitx_bclk"),
+ CLK_MSR_ID(129, "o_tohdmitx_mclk"),
+ CLK_MSR_ID(130, "o_tohdmitx_spdif_clk"),
+ CLK_MSR_ID(131, "o_toacodec_bclk"),
+ CLK_MSR_ID(132, "o_toacodec_mclk"),
+ CLK_MSR_ID(133, "o_spdifout_b_mst_clk"),
+ CLK_MSR_ID(134, "o_spdifout_mst_clk"),
+ CLK_MSR_ID(135, "o_spdifin_mst_clk"),
+ CLK_MSR_ID(136, "o_audio_mclk"),
+ CLK_MSR_ID(137, "o_vad_clk"),
+ CLK_MSR_ID(138, "o_tdmout_d_sclk"),
+ CLK_MSR_ID(139, "o_tdmout_c_sclk"),
+ CLK_MSR_ID(140, "o_tdmout_b_sclk"),
+ CLK_MSR_ID(141, "o_tdmout_a_sclk"),
+ CLK_MSR_ID(142, "o_tdminb_1b_sclk"),
+ CLK_MSR_ID(143, "o_tdmin_1b_sclk"),
+ CLK_MSR_ID(144, "o_tdmin_d_sclk"),
+ CLK_MSR_ID(145, "o_tdmin_c_sclk"),
+ CLK_MSR_ID(146, "o_tdmin_b_sclk"),
+ CLK_MSR_ID(147, "o_tdmin_a_sclk"),
+ CLK_MSR_ID(148, "o_resampleb_clk"),
+ CLK_MSR_ID(149, "o_resamplea_clk"),
+ CLK_MSR_ID(150, "o_pdmb_sysclk"),
+ CLK_MSR_ID(151, "o_pdmb_dclk"),
+ CLK_MSR_ID(152, "o_pdm_sysclk"),
+ CLK_MSR_ID(153, "o_pdm_dclk"),
+ CLK_MSR_ID(154, "c_alockerb_out_clk"),
+ CLK_MSR_ID(155, "c_alockerb_in_clk"),
+ CLK_MSR_ID(156, "c_alocker_out_clk"),
+ CLK_MSR_ID(157, "c_alocker_in_clk"),
+ CLK_MSR_ID(158, "audio_mst_clk[34]"),
+ CLK_MSR_ID(159, "audio_mst_clk[35]"),
+ CLK_MSR_ID(160, "pwm_n"),
+ CLK_MSR_ID(161, "pwm_m"),
+ CLK_MSR_ID(162, "pwm_l"),
+ CLK_MSR_ID(163, "pwm_k"),
+ CLK_MSR_ID(164, "pwm_j"),
+ CLK_MSR_ID(165, "pwm_i"),
+ CLK_MSR_ID(166, "pwm_h"),
+ CLK_MSR_ID(167, "pwm_g"),
+ CLK_MSR_ID(168, "pwm_f"),
+ CLK_MSR_ID(169, "pwm_e"),
+ CLK_MSR_ID(170, "pwm_d"),
+ CLK_MSR_ID(171, "pwm_c"),
+ CLK_MSR_ID(172, "pwm_b"),
+ CLK_MSR_ID(173, "pwm_a"),
+ CLK_MSR_ID(174, "AU_DAC1_CLK_TO_GPIO"),
+ CLK_MSR_ID(175, "AU_ADC_CLK_TO_GPIO"),
+ CLK_MSR_ID(176, "rng_ring_osc_clk[0]"),
+ CLK_MSR_ID(177, "rng_ring_osc_clk[1]"),
+ CLK_MSR_ID(178, "rng_ring_osc_clk[2]"),
+ CLK_MSR_ID(179, "rng_ring_osc_clk[3]"),
+ CLK_MSR_ID(180, "sys_cpu_ring_osc_clk[0]"),
+ CLK_MSR_ID(181, "sys_cpu_ring_osc_clk[1]"),
+ CLK_MSR_ID(182, "sys_cpu_ring_osc_clk[2]"),
+ CLK_MSR_ID(183, "sys_cpu_ring_osc_clk[3]"),
+ CLK_MSR_ID(184, "sys_cpu_ring_osc_clk[4]"),
+ CLK_MSR_ID(185, "sys_cpu_ring_osc_clk[5]"),
+ CLK_MSR_ID(186, "sys_cpu_ring_osc_clk[6]"),
+ CLK_MSR_ID(187, "sys_cpu_ring_osc_clk[7]"),
+ CLK_MSR_ID(188, "sys_cpu_ring_osc_clk[8]"),
+ CLK_MSR_ID(189, "sys_cpu_ring_osc_clk[9]"),
+ CLK_MSR_ID(190, "sys_cpu_ring_osc_clk[10]"),
+ CLK_MSR_ID(191, "sys_cpu_ring_osc_clk[11]"),
+ CLK_MSR_ID(192, "am_ring_osc_clk_out[12](dmc)"),
+ CLK_MSR_ID(193, "am_ring_osc_clk_out[13](rama)"),
+ CLK_MSR_ID(194, "am_ring_osc_clk_out[14](nna)"),
+ CLK_MSR_ID(195, "am_ring_osc_clk_out[15](nna)"),
+ CLK_MSR_ID(200, "rng_ring_osc_clk_1[0]"),
+ CLK_MSR_ID(201, "rng_ring_osc_clk_1[1]"),
+ CLK_MSR_ID(202, "rng_ring_osc_clk_1[2]"),
+ CLK_MSR_ID(203, "rng_ring_osc_clk_1[3]"),
+
+};
+
static int meson_measure_id(struct meson_msr_id *clk_msr_id,
unsigned int duration)
{
@@ -729,6 +869,20 @@ static const struct meson_msr_data clk_msr_sm1_data = {
},
};
+static const struct meson_msr_data clk_msr_c3_data = {
+ .msr_table = (void *)clk_msr_c3,
+ .msr_count = ARRAY_SIZE(clk_msr_c3),
+ .reg = {
+ .reg0 = 0x0,
+ .reg1 = 0x4,
+ .reg2 = 0x8,
+ .reg3 = 0xc,
+ .reg4 = 0x10,
+ .reg5 = 0x14,
+ .duty = 0x18,
+ },
+};
+
static const struct of_device_id meson_msr_match_table[] = {
{
.compatible = "amlogic,meson-gx-clk-measure",
@@ -754,6 +908,10 @@ static const struct of_device_id meson_msr_match_table[] = {
.compatible = "amlogic,meson-sm1-clk-measure",
.data = &clk_msr_sm1_data,
},
+ {
+ .compatible = "amlogic,c3-clk-measure",
+ .data = &clk_msr_c3_data,
+ },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, meson_msr_match_table);
--
2.42.0
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 5/7] soc: amlogic: clk-measure: Add support for S4
2025-04-11 12:42 [PATCH 0/7] soc: amlogic: clk-measure: Add clk-measure support for C3 and S4 Chuan Liu via B4 Relay
` (3 preceding siblings ...)
2025-04-11 12:42 ` [PATCH 4/7] soc: amlogic: clk-measure: Add support for C3 Chuan Liu via B4 Relay
@ 2025-04-11 12:42 ` Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 6/7] arm64: dts: amlogic: C3: Add clk-measure controller node Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 7/7] arm64: dts: amlogic: S4: " Chuan Liu via B4 Relay
6 siblings, 0 replies; 12+ messages in thread
From: Chuan Liu via B4 Relay @ 2025-04-11 12:42 UTC (permalink / raw)
To: Neil Armstrong, Kevin Hilman, Jerome Brunet, Martin Blumenstingl,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-kernel, linux-amlogic, linux-kernel, devicetree,
Chuan Liu
From: Chuan Liu <chuan.liu@amlogic.com>
Add the clk-measurer clocks IDs for the Amlogic S4 SoC family.
Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
---
drivers/soc/amlogic/meson-clk-measure.c | 171 ++++++++++++++++++++++++++++++++
1 file changed, 171 insertions(+)
diff --git a/drivers/soc/amlogic/meson-clk-measure.c b/drivers/soc/amlogic/meson-clk-measure.c
index c6daddb8f1b8..cf51e7ede1b6 100644
--- a/drivers/soc/amlogic/meson-clk-measure.c
+++ b/drivers/soc/amlogic/meson-clk-measure.c
@@ -637,6 +637,159 @@ static const struct meson_msr_id clk_msr_c3[] = {
};
+static const struct meson_msr_id clk_msr_s4[] = {
+ CLK_MSR_ID(0, "sys_clk"),
+ CLK_MSR_ID(1, "axi_clk"),
+ CLK_MSR_ID(2, "rtc_clk"),
+ CLK_MSR_ID(5, "mali"),
+ CLK_MSR_ID(6, "cpu_clk_div16"),
+ CLK_MSR_ID(7, "ceca_clk"),
+ CLK_MSR_ID(8, "cecb_clk"),
+ CLK_MSR_ID(10, "fclk_div5"),
+ CLK_MSR_ID(11, "mpll0"),
+ CLK_MSR_ID(12, "mpll1"),
+ CLK_MSR_ID(13, "mpll2"),
+ CLK_MSR_ID(14, "mpll3"),
+ CLK_MSR_ID(15, "fclk_50m"),
+ CLK_MSR_ID(16, "pcie_clk_inp"),
+ CLK_MSR_ID(17, "pcie_clk_inn"),
+ CLK_MSR_ID(18, "mpll_clk_test_out"),
+ CLK_MSR_ID(19, "hifi_pll"),
+ CLK_MSR_ID(20, "gp0_pll"),
+ CLK_MSR_ID(21, "gp1_pll"),
+ CLK_MSR_ID(22, "eth_mppll_50m_ckout"),
+ CLK_MSR_ID(23, "sys_pll_div16"),
+ CLK_MSR_ID(24, "ddr_dpll_pt_clk"),
+ CLK_MSR_ID(30, "mod_eth_phy_ref_clk"),
+ CLK_MSR_ID(31, "mod_eth_tx_clk"),
+ CLK_MSR_ID(32, "eth_125m"),
+ CLK_MSR_ID(33, "eth_rmii"),
+ CLK_MSR_ID(34, "co_clkin_to_mac"),
+ CLK_MSR_ID(35, "mod_eth_rx_clk_rmii"),
+ CLK_MSR_ID(36, "co_rx_clk"),
+ CLK_MSR_ID(37, "co_tx_clk"),
+ CLK_MSR_ID(38, "eth_phy_rxclk"),
+ CLK_MSR_ID(39, "eth_phy_plltxclk"),
+ CLK_MSR_ID(40, "ephy_test_clk"),
+ CLK_MSR_ID(50, "vid_pll_div_clk_out"),
+ CLK_MSR_ID(51, "enci"),
+ CLK_MSR_ID(52, "encp"),
+ CLK_MSR_ID(53, "encl"),
+ CLK_MSR_ID(54, "vdac"),
+ CLK_MSR_ID(55, "cdac_clk_c"),
+ CLK_MSR_ID(56, "mod_tcon_clko"),
+ CLK_MSR_ID(57, "lcd_an_clk_ph2"),
+ CLK_MSR_ID(58, "lcd_an_clk_ph3"),
+ CLK_MSR_ID(59, "hdmitx_pixel"),
+ CLK_MSR_ID(60, "vdin_meas"),
+ CLK_MSR_ID(61, "vpu"),
+ CLK_MSR_ID(62, "vpu_clkb"),
+ CLK_MSR_ID(63, "vpu_clkb_tmp"),
+ CLK_MSR_ID(64, "vpu_clkc"),
+ CLK_MSR_ID(65, "vid_lock"),
+ CLK_MSR_ID(66, "vapb"),
+ CLK_MSR_ID(67, "ge2d"),
+ CLK_MSR_ID(68, "cts_hdcp22_esmclk"),
+ CLK_MSR_ID(69, "cts_hdcp22_skpclk"),
+ CLK_MSR_ID(76, "hdmitx_tmds"),
+ CLK_MSR_ID(77, "hdmitx_sys_clk"),
+ CLK_MSR_ID(78, "hdmitx_fe_clk"),
+ CLK_MSR_ID(79, "rama"),
+ CLK_MSR_ID(93, "vdec"),
+ CLK_MSR_ID(99, "hevcf"),
+ CLK_MSR_ID(100, "demod_core"),
+ CLK_MSR_ID(101, "adc_extclk_in"),
+ CLK_MSR_ID(102, "cts_demod_core_t2_clk"),
+ CLK_MSR_ID(103, "adc_dpll_intclk"),
+ CLK_MSR_ID(104, "adc_dpll_clk_b3"),
+ CLK_MSR_ID(105, "s2_adc_clk"),
+ CLK_MSR_ID(106, "deskew_pll_clk_div32_out"),
+ CLK_MSR_ID(110, "sc"),
+ CLK_MSR_ID(111, "sar_adc"),
+ CLK_MSR_ID(113, "sd_emmc_c"),
+ CLK_MSR_ID(114, "sd_emmc_b"),
+ CLK_MSR_ID(115, "sd_emmc_a"),
+ CLK_MSR_ID(116, "gpio_msr_clk"),
+ CLK_MSR_ID(118, "spicc0"),
+ CLK_MSR_ID(121, "ts"),
+ CLK_MSR_ID(130, "audio_vad_clk"),
+ CLK_MSR_ID(131, "acodec_dac_clk_x128"),
+ CLK_MSR_ID(132, "audio_locker_in_clk"),
+ CLK_MSR_ID(133, "audio_locker_out_clk"),
+ CLK_MSR_ID(134, "audio_tdmout_c_sclk"),
+ CLK_MSR_ID(135, "audio_tdmout_b_sclk"),
+ CLK_MSR_ID(136, "audio_tdmout_a_sclk"),
+ CLK_MSR_ID(137, "audio_tdmin_lb_sclk"),
+ CLK_MSR_ID(138, "audio_tdmin_c_sclk"),
+ CLK_MSR_ID(139, "audio_tdmin_b_sclk"),
+ CLK_MSR_ID(140, "audio_tdmin_a_sclk"),
+ CLK_MSR_ID(141, "audio_resamplea_clk"),
+ CLK_MSR_ID(142, "audio_pdm_sysclk"),
+ CLK_MSR_ID(143, "audio_spdifout_b_mst_clk"),
+ CLK_MSR_ID(144, "audio_spdifout_mst_clk"),
+ CLK_MSR_ID(145, "audio_spdifin_mst_clk"),
+ CLK_MSR_ID(146, "audio_pdm_dclk"),
+ CLK_MSR_ID(147, "audio_resampleb_clk"),
+ CLK_MSR_ID(160, "pwm_j"),
+ CLK_MSR_ID(161, "pwm_i"),
+ CLK_MSR_ID(162, "pwm_h"),
+ CLK_MSR_ID(163, "pwm_g"),
+ CLK_MSR_ID(164, "pwm_f"),
+ CLK_MSR_ID(165, "pwm_e"),
+ CLK_MSR_ID(166, "pwm_d"),
+ CLK_MSR_ID(167, "pwm_c"),
+ CLK_MSR_ID(168, "pwm_b"),
+ CLK_MSR_ID(169, "pwm_a"),
+ CLK_MSR_ID(176, "rng_ring_0"),
+ CLK_MSR_ID(177, "rng_ring_1"),
+ CLK_MSR_ID(178, "rng_ring_2"),
+ CLK_MSR_ID(179, "rng_ring_3"),
+ CLK_MSR_ID(180, "dmc_osc_ring(LVT16)"),
+ CLK_MSR_ID(181, "gpu_osc_ring0(LVT16)"),
+ CLK_MSR_ID(182, "gpu_osc_ring1(ULVT16)"),
+ CLK_MSR_ID(183, "gpu_osc_ring2(SLVT16)"),
+ CLK_MSR_ID(184, "vpu_osc_ring0(SVT24)"),
+ CLK_MSR_ID(185, "vpu_osc_ring1(LVT20)"),
+ CLK_MSR_ID(186, "vpu_osc_ring2(LVT16)"),
+ CLK_MSR_ID(187, "dos_osc_ring0(SVT24)"),
+ CLK_MSR_ID(188, "dos_osc_ring1(SVT16)"),
+ CLK_MSR_ID(189, "dos_osc_ring2(LVT16)"),
+ CLK_MSR_ID(190, "dos_osc_ring3(ULVT20)"),
+ CLK_MSR_ID(192, "axi_sram_osc_ring(SVT16)"),
+ CLK_MSR_ID(193, "demod_osc_ring0"),
+ CLK_MSR_ID(194, "demod_osc_ring1"),
+ CLK_MSR_ID(195, "sar_osc_ring"),
+ CLK_MSR_ID(196, "sys_cpu_osc_ring0"),
+ CLK_MSR_ID(197, "sys_cpu_osc_ring1"),
+ CLK_MSR_ID(198, "sys_cpu_osc_ring2"),
+ CLK_MSR_ID(199, "sys_cpu_osc_ring3"),
+ CLK_MSR_ID(200, "sys_cpu_osc_ring4"),
+ CLK_MSR_ID(201, "sys_cpu_osc_ring5"),
+ CLK_MSR_ID(202, "sys_cpu_osc_ring6"),
+ CLK_MSR_ID(203, "sys_cpu_osc_ring7"),
+ CLK_MSR_ID(204, "sys_cpu_osc_ring8"),
+ CLK_MSR_ID(205, "sys_cpu_osc_ring9"),
+ CLK_MSR_ID(206, "sys_cpu_osc_ring10"),
+ CLK_MSR_ID(207, "sys_cpu_osc_ring11"),
+ CLK_MSR_ID(208, "sys_cpu_osc_ring12"),
+ CLK_MSR_ID(209, "sys_cpu_osc_ring13"),
+ CLK_MSR_ID(210, "sys_cpu_osc_ring14"),
+ CLK_MSR_ID(211, "sys_cpu_osc_ring15"),
+ CLK_MSR_ID(212, "sys_cpu_osc_ring16"),
+ CLK_MSR_ID(213, "sys_cpu_osc_ring17"),
+ CLK_MSR_ID(214, "sys_cpu_osc_ring18"),
+ CLK_MSR_ID(215, "sys_cpu_osc_ring19"),
+ CLK_MSR_ID(216, "sys_cpu_osc_ring20"),
+ CLK_MSR_ID(217, "sys_cpu_osc_ring21"),
+ CLK_MSR_ID(218, "sys_cpu_osc_ring22"),
+ CLK_MSR_ID(219, "sys_cpu_osc_ring23"),
+ CLK_MSR_ID(220, "sys_cpu_osc_ring24"),
+ CLK_MSR_ID(221, "sys_cpu_osc_ring25"),
+ CLK_MSR_ID(222, "sys_cpu_osc_ring26"),
+ CLK_MSR_ID(223, "sys_cpu_osc_ring27"),
+
+};
+
static int meson_measure_id(struct meson_msr_id *clk_msr_id,
unsigned int duration)
{
@@ -883,6 +1036,20 @@ static const struct meson_msr_data clk_msr_c3_data = {
},
};
+static const struct meson_msr_data clk_msr_s4_data = {
+ .msr_table = (void *)clk_msr_s4,
+ .msr_count = ARRAY_SIZE(clk_msr_s4),
+ .reg = {
+ .reg0 = 0x0,
+ .reg1 = 0x4,
+ .reg2 = 0x8,
+ .reg3 = 0xc,
+ .reg4 = 0x10,
+ .reg5 = 0x14,
+ .duty = 0x18,
+ },
+};
+
static const struct of_device_id meson_msr_match_table[] = {
{
.compatible = "amlogic,meson-gx-clk-measure",
@@ -912,6 +1079,10 @@ static const struct of_device_id meson_msr_match_table[] = {
.compatible = "amlogic,c3-clk-measure",
.data = &clk_msr_c3_data,
},
+ {
+ .compatible = "amlogic,s4-clk-measure",
+ .data = &clk_msr_s4_data,
+ },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, meson_msr_match_table);
--
2.42.0
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 6/7] arm64: dts: amlogic: C3: Add clk-measure controller node
2025-04-11 12:42 [PATCH 0/7] soc: amlogic: clk-measure: Add clk-measure support for C3 and S4 Chuan Liu via B4 Relay
` (4 preceding siblings ...)
2025-04-11 12:42 ` [PATCH 5/7] soc: amlogic: clk-measure: Add support for S4 Chuan Liu via B4 Relay
@ 2025-04-11 12:42 ` Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 7/7] arm64: dts: amlogic: S4: " Chuan Liu via B4 Relay
6 siblings, 0 replies; 12+ messages in thread
From: Chuan Liu via B4 Relay @ 2025-04-11 12:42 UTC (permalink / raw)
To: Neil Armstrong, Kevin Hilman, Jerome Brunet, Martin Blumenstingl,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-kernel, linux-amlogic, linux-kernel, devicetree,
Chuan Liu
From: Chuan Liu <chuan.liu@amlogic.com>
Add the clk-measure controller node for C3 SoC family.
Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
---
arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
index fd0e557eba06..cb9ea3ca6ee0 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
+++ b/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
@@ -760,6 +760,11 @@ internal_ephy: ethernet_phy@8 {
};
};
+ clk_msr: clock-measure@48000 {
+ compatible = "amlogic,c3-clk-measure";
+ reg = <0x0 0x48000 0x0 0x1c>;
+ };
+
spicc0: spi@50000 {
compatible = "amlogic,meson-g12a-spicc";
reg = <0x0 0x50000 0x0 0x44>;
--
2.42.0
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 7/7] arm64: dts: amlogic: S4: Add clk-measure controller node
2025-04-11 12:42 [PATCH 0/7] soc: amlogic: clk-measure: Add clk-measure support for C3 and S4 Chuan Liu via B4 Relay
` (5 preceding siblings ...)
2025-04-11 12:42 ` [PATCH 6/7] arm64: dts: amlogic: C3: Add clk-measure controller node Chuan Liu via B4 Relay
@ 2025-04-11 12:42 ` Chuan Liu via B4 Relay
6 siblings, 0 replies; 12+ messages in thread
From: Chuan Liu via B4 Relay @ 2025-04-11 12:42 UTC (permalink / raw)
To: Neil Armstrong, Kevin Hilman, Jerome Brunet, Martin Blumenstingl,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-kernel, linux-amlogic, linux-kernel, devicetree,
Chuan Liu
From: Chuan Liu <chuan.liu@amlogic.com>
Add the clk-measure controller node for S4 SoC family.
Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
---
arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
index 957577d986c0..9d99ed2994df 100644
--- a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
@@ -629,6 +629,11 @@ internal_ephy: ethernet-phy@8 {
};
};
+ clk_msr: clock-measure@48000 {
+ compatible = "amlogic,s4-clk-measure";
+ reg = <0x0 0x48000 0x0 0x1c>;
+ };
+
spicc0: spi@50000 {
compatible = "amlogic,meson-g12a-spicc";
reg = <0x0 0x50000 0x0 0x44>;
--
2.42.0
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH 1/7] soc: amlogic: clk-measure: Define MSR_CLK's register offset separately
2025-04-11 12:42 ` [PATCH 1/7] soc: amlogic: clk-measure: Define MSR_CLK's register offset separately Chuan Liu via B4 Relay
@ 2025-04-11 13:31 ` Neil Armstrong
2025-04-14 3:31 ` Chuan Liu
0 siblings, 1 reply; 12+ messages in thread
From: Neil Armstrong @ 2025-04-11 13:31 UTC (permalink / raw)
To: chuan.liu, Kevin Hilman, Jerome Brunet, Martin Blumenstingl,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-kernel, linux-amlogic, linux-kernel, devicetree
Hi,
On 11/04/2025 14:42, Chuan Liu via B4 Relay wrote:
> From: Chuan Liu <chuan.liu@amlogic.com>
>
> Since the MSR_CLK register offset differs between chip variants, we
> replace the macro-based definition with chip-specific assignments.
>
> Change the max_register in regmap_config to be retrieved from DTS.
>
> Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
> ---
> drivers/soc/amlogic/meson-clk-measure.c | 70 ++++++++++++++++++++++++++-------
> 1 file changed, 55 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/soc/amlogic/meson-clk-measure.c b/drivers/soc/amlogic/meson-clk-measure.c
> index 39638d6a593c..30387d26307c 100644
> --- a/drivers/soc/amlogic/meson-clk-measure.c
> +++ b/drivers/soc/amlogic/meson-clk-measure.c
> @@ -14,11 +14,6 @@
>
> static DEFINE_MUTEX(measure_lock);
>
> -#define MSR_CLK_DUTY 0x0
> -#define MSR_CLK_REG0 0x4
> -#define MSR_CLK_REG1 0x8
> -#define MSR_CLK_REG2 0xc
> -
> #define MSR_DURATION GENMASK(15, 0)
> #define MSR_ENABLE BIT(16)
> #define MSR_CONT BIT(17) /* continuous measurement */
> @@ -39,9 +34,20 @@ struct meson_msr_id {
> const char *name;
> };
>
> +struct msr_reg_offset {
> + unsigned int duty;
> + unsigned int reg0;
> + unsigned int reg1;
> + unsigned int reg2;
> + unsigned int reg3;
> + unsigned int reg4;
> + unsigned int reg5;
> +};
I don't object, but:
1) could you help actually put a real name on those registers ?
2) why adding regs 3, 4 & 5 if you don't use them ?
> +
> struct meson_msr_data {
> struct meson_msr_id *msr_table;
> unsigned int msr_count;
> + struct msr_reg_offset reg;
> };
>
> struct meson_msr {
> @@ -495,6 +501,7 @@ static int meson_measure_id(struct meson_msr_id *clk_msr_id,
> unsigned int duration)
> {
> struct meson_msr *priv = clk_msr_id->priv;
> + struct msr_reg_offset *reg = &priv->data.reg;
> unsigned int val;
> int ret;
>
> @@ -502,22 +509,22 @@ static int meson_measure_id(struct meson_msr_id *clk_msr_id,
> if (ret)
> return ret;
>
> - regmap_write(priv->regmap, MSR_CLK_REG0, 0);
> + regmap_write(priv->regmap, reg->reg0, 0);
>
> /* Set measurement duration */
> - regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_DURATION,
> + regmap_update_bits(priv->regmap, reg->reg0, MSR_DURATION,
> FIELD_PREP(MSR_DURATION, duration - 1));
>
> /* Set ID */
> - regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_CLK_SRC,
> + regmap_update_bits(priv->regmap, reg->reg0, MSR_CLK_SRC,
> FIELD_PREP(MSR_CLK_SRC, clk_msr_id->id));
>
> /* Enable & Start */
> - regmap_update_bits(priv->regmap, MSR_CLK_REG0,
> + regmap_update_bits(priv->regmap, reg->reg0,
> MSR_RUN | MSR_ENABLE,
> MSR_RUN | MSR_ENABLE);
>
> - ret = regmap_read_poll_timeout(priv->regmap, MSR_CLK_REG0,
> + ret = regmap_read_poll_timeout(priv->regmap, reg->reg0,
> val, !(val & MSR_BUSY), 10, 10000);
> if (ret) {
> mutex_unlock(&measure_lock);
> @@ -525,10 +532,10 @@ static int meson_measure_id(struct meson_msr_id *clk_msr_id,
> }
>
> /* Disable */
> - regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_ENABLE, 0);
> + regmap_update_bits(priv->regmap, reg->reg0, MSR_ENABLE, 0);
>
> /* Get the value in multiple of gate time counts */
> - regmap_read(priv->regmap, MSR_CLK_REG2, &val);
> + regmap_read(priv->regmap, reg->reg2, &val);
>
> mutex_unlock(&measure_lock);
>
> @@ -599,11 +606,10 @@ static int clk_msr_summary_show(struct seq_file *s, void *data)
> }
> DEFINE_SHOW_ATTRIBUTE(clk_msr_summary);
>
> -static const struct regmap_config meson_clk_msr_regmap_config = {
> +static struct regmap_config meson_clk_msr_regmap_config = {
> .reg_bits = 32,
> .val_bits = 32,
> .reg_stride = 4,
> - .max_register = MSR_CLK_REG2,
> };
>
> static int meson_msr_probe(struct platform_device *pdev)
> @@ -611,6 +617,7 @@ static int meson_msr_probe(struct platform_device *pdev)
> const struct meson_msr_data *match_data;
> struct meson_msr *priv;
> struct dentry *root, *clks;
> + struct resource *res;
> void __iomem *base;
> int i;
>
> @@ -636,15 +643,18 @@ static int meson_msr_probe(struct platform_device *pdev)
> match_data->msr_count * sizeof(struct meson_msr_id));
> priv->data.msr_count = match_data->msr_count;
>
> - base = devm_platform_ioremap_resource(pdev, 0);
> + base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
> if (IS_ERR(base))
> return PTR_ERR(base);
>
> + meson_clk_msr_regmap_config.max_register = resource_size(res) - 4;
> priv->regmap = devm_regmap_init_mmio(&pdev->dev, base,
> &meson_clk_msr_regmap_config);
> if (IS_ERR(priv->regmap))
> return PTR_ERR(priv->regmap);
>
> + memcpy(&priv->data.reg, &match_data->reg, sizeof(struct msr_reg_offset));
> +
> root = debugfs_create_dir("meson-clk-msr", NULL);
> clks = debugfs_create_dir("clks", root);
>
> @@ -667,26 +677,56 @@ static int meson_msr_probe(struct platform_device *pdev)
> static const struct meson_msr_data clk_msr_gx_data = {
> .msr_table = (void *)clk_msr_gx,
> .msr_count = ARRAY_SIZE(clk_msr_gx),
> + .reg = {
> + .duty = 0x0,
> + .reg0 = 0x4,
> + .reg1 = 0x8,
> + .reg2 = 0xc,
> + },
Would be great to not duplicate this struct.
> };
>
> static const struct meson_msr_data clk_msr_m8_data = {
> .msr_table = (void *)clk_msr_m8,
> .msr_count = ARRAY_SIZE(clk_msr_m8),
> + .reg = {
> + .duty = 0x0,
> + .reg0 = 0x4,
> + .reg1 = 0x8,
> + .reg2 = 0xc,
> + },
> };
>
> static const struct meson_msr_data clk_msr_axg_data = {
> .msr_table = (void *)clk_msr_axg,
> .msr_count = ARRAY_SIZE(clk_msr_axg),
> + .reg = {
> + .duty = 0x0,
> + .reg0 = 0x4,
> + .reg1 = 0x8,
> + .reg2 = 0xc,
> + },
> };
>
> static const struct meson_msr_data clk_msr_g12a_data = {
> .msr_table = (void *)clk_msr_g12a,
> .msr_count = ARRAY_SIZE(clk_msr_g12a),
> + .reg = {
> + .duty = 0x0,
> + .reg0 = 0x4,
> + .reg1 = 0x8,
> + .reg2 = 0xc,
> + },
> };
>
> static const struct meson_msr_data clk_msr_sm1_data = {
> .msr_table = (void *)clk_msr_sm1,
> .msr_count = ARRAY_SIZE(clk_msr_sm1),
> + .reg = {
> + .duty = 0x0,
> + .reg0 = 0x4,
> + .reg1 = 0x8,
> + .reg2 = 0xc,
> + },
> };
>
> static const struct of_device_id meson_msr_match_table[] = {
>
Thanks,
Neil
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 2/7] dt-bindings: soc: amlogic: C3 supports clk-measure
2025-04-11 12:42 ` [PATCH 2/7] dt-bindings: soc: amlogic: C3 supports clk-measure Chuan Liu via B4 Relay
@ 2025-04-11 20:55 ` Rob Herring (Arm)
0 siblings, 0 replies; 12+ messages in thread
From: Rob Herring (Arm) @ 2025-04-11 20:55 UTC (permalink / raw)
To: Chuan Liu
Cc: Conor Dooley, devicetree, linux-kernel, Martin Blumenstingl,
Neil Armstrong, Krzysztof Kozlowski, Jerome Brunet, Kevin Hilman,
linux-amlogic, linux-arm-kernel
On Fri, 11 Apr 2025 20:42:44 +0800, Chuan Liu wrote:
> C3 adds support for clk-measure.
>
> Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
> ---
> .../devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml | 1 +
> 1 file changed, 1 insertion(+)
>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 3/7] dt-bindings: soc: amlogic: S4 supports clk-measure
2025-04-11 12:42 ` [PATCH 3/7] dt-bindings: soc: amlogic: S4 " Chuan Liu via B4 Relay
@ 2025-04-11 20:55 ` Rob Herring (Arm)
0 siblings, 0 replies; 12+ messages in thread
From: Rob Herring (Arm) @ 2025-04-11 20:55 UTC (permalink / raw)
To: Chuan Liu
Cc: linux-arm-kernel, linux-amlogic, devicetree, Neil Armstrong,
linux-kernel, Conor Dooley, Martin Blumenstingl, Kevin Hilman,
Krzysztof Kozlowski, Jerome Brunet
On Fri, 11 Apr 2025 20:42:45 +0800, Chuan Liu wrote:
> S4 adds support for clk-measure.
>
> Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
> ---
> .../devicetree/bindings/soc/amlogic/amlogic,meson-gx-clk-measure.yaml | 1 +
> 1 file changed, 1 insertion(+)
>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 1/7] soc: amlogic: clk-measure: Define MSR_CLK's register offset separately
2025-04-11 13:31 ` Neil Armstrong
@ 2025-04-14 3:31 ` Chuan Liu
0 siblings, 0 replies; 12+ messages in thread
From: Chuan Liu @ 2025-04-14 3:31 UTC (permalink / raw)
To: neil.armstrong, Kevin Hilman, Jerome Brunet, Martin Blumenstingl,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-kernel, linux-amlogic, linux-kernel, devicetree
Hi Neil:
Thanks for your suggestion.
On 4/11/2025 9:31 PM, Neil Armstrong wrote:
> [ EXTERNAL EMAIL ]
>
> Hi,
>
> On 11/04/2025 14:42, Chuan Liu via B4 Relay wrote:
>> From: Chuan Liu <chuan.liu@amlogic.com>
>>
>> Since the MSR_CLK register offset differs between chip variants, we
>> replace the macro-based definition with chip-specific assignments.
>>
>> Change the max_register in regmap_config to be retrieved from DTS.
>>
>> Signed-off-by: Chuan Liu <chuan.liu@amlogic.com>
>> ---
>> drivers/soc/amlogic/meson-clk-measure.c | 70
>> ++++++++++++++++++++++++++-------
>> 1 file changed, 55 insertions(+), 15 deletions(-)
>>
>> diff --git a/drivers/soc/amlogic/meson-clk-measure.c
>> b/drivers/soc/amlogic/meson-clk-measure.c
>> index 39638d6a593c..30387d26307c 100644
>> --- a/drivers/soc/amlogic/meson-clk-measure.c
>> +++ b/drivers/soc/amlogic/meson-clk-measure.c
>> @@ -14,11 +14,6 @@
>>
>> static DEFINE_MUTEX(measure_lock);
>>
>> -#define MSR_CLK_DUTY 0x0
>> -#define MSR_CLK_REG0 0x4
>> -#define MSR_CLK_REG1 0x8
>> -#define MSR_CLK_REG2 0xc
>> -
>> #define MSR_DURATION GENMASK(15, 0)
>> #define MSR_ENABLE BIT(16)
>> #define MSR_CONT BIT(17) /* continuous measurement */
>> @@ -39,9 +34,20 @@ struct meson_msr_id {
>> const char *name;
>> };
>>
>> +struct msr_reg_offset {
>> + unsigned int duty;
>> + unsigned int reg0;
>> + unsigned int reg1;
>> + unsigned int reg2;
>> + unsigned int reg3;
>> + unsigned int reg4;
>> + unsigned int reg5;
>> +};
>
> I don't object, but:
> 1) could you help actually put a real name on those registers ?
The clk-measure registers and their corresponding functions in our
released documentation are as follows:
MSR_CLK_DUTY: Accumulates counts of clock high/low levels within a
measurement window for duty cycle calculation.
MSR_CLK_REG0: Control register for clock frequency measurement.
MSR_CLK_REG1: Control register for clock duty cycle measurement.
MSR_CLK_REG2: Accumulates total cycle counts within the measurement
window for frequency calculation.
MSR_CLK_REG3-6: Debug status registers for clk-measure (typically
unused in normal operation).
Register Renaming for Next Version:
"duty" -> "duty_val"
"reg0" -> "freq_ctrl"
"reg1" -> "duty_ctrl"
"reg2" -> "freq_val"
> 2) why adding regs 3, 4 & 5 if you don't use them ?
These three registers are unused in normal operation and will be removed
in the next version.
>
>> +
>> struct meson_msr_data {
>> struct meson_msr_id *msr_table;
>> unsigned int msr_count;
>> + struct msr_reg_offset reg;
>> };
>>
>> struct meson_msr {
>> @@ -495,6 +501,7 @@ static int meson_measure_id(struct meson_msr_id
>> *clk_msr_id,
>> unsigned int duration)
>> {
>> struct meson_msr *priv = clk_msr_id->priv;
>> + struct msr_reg_offset *reg = &priv->data.reg;
>> unsigned int val;
>> int ret;
>>
>> @@ -502,22 +509,22 @@ static int meson_measure_id(struct meson_msr_id
>> *clk_msr_id,
>> if (ret)
>> return ret;
>>
>> - regmap_write(priv->regmap, MSR_CLK_REG0, 0);
>> + regmap_write(priv->regmap, reg->reg0, 0);
>>
>> /* Set measurement duration */
>> - regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_DURATION,
>> + regmap_update_bits(priv->regmap, reg->reg0, MSR_DURATION,
>> FIELD_PREP(MSR_DURATION, duration - 1));
>>
>> /* Set ID */
>> - regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_CLK_SRC,
>> + regmap_update_bits(priv->regmap, reg->reg0, MSR_CLK_SRC,
>> FIELD_PREP(MSR_CLK_SRC, clk_msr_id->id));
>>
>> /* Enable & Start */
>> - regmap_update_bits(priv->regmap, MSR_CLK_REG0,
>> + regmap_update_bits(priv->regmap, reg->reg0,
>> MSR_RUN | MSR_ENABLE,
>> MSR_RUN | MSR_ENABLE);
>>
>> - ret = regmap_read_poll_timeout(priv->regmap, MSR_CLK_REG0,
>> + ret = regmap_read_poll_timeout(priv->regmap, reg->reg0,
>> val, !(val & MSR_BUSY), 10, 10000);
>> if (ret) {
>> mutex_unlock(&measure_lock);
>> @@ -525,10 +532,10 @@ static int meson_measure_id(struct meson_msr_id
>> *clk_msr_id,
>> }
>>
>> /* Disable */
>> - regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_ENABLE, 0);
>> + regmap_update_bits(priv->regmap, reg->reg0, MSR_ENABLE, 0);
>>
>> /* Get the value in multiple of gate time counts */
>> - regmap_read(priv->regmap, MSR_CLK_REG2, &val);
>> + regmap_read(priv->regmap, reg->reg2, &val);
>>
>> mutex_unlock(&measure_lock);
>>
>> @@ -599,11 +606,10 @@ static int clk_msr_summary_show(struct seq_file
>> *s, void *data)
>> }
>> DEFINE_SHOW_ATTRIBUTE(clk_msr_summary);
>>
>> -static const struct regmap_config meson_clk_msr_regmap_config = {
>> +static struct regmap_config meson_clk_msr_regmap_config = {
>> .reg_bits = 32,
>> .val_bits = 32,
>> .reg_stride = 4,
>> - .max_register = MSR_CLK_REG2,
>> };
>>
>> static int meson_msr_probe(struct platform_device *pdev)
>> @@ -611,6 +617,7 @@ static int meson_msr_probe(struct platform_device
>> *pdev)
>> const struct meson_msr_data *match_data;
>> struct meson_msr *priv;
>> struct dentry *root, *clks;
>> + struct resource *res;
>> void __iomem *base;
>> int i;
>>
>> @@ -636,15 +643,18 @@ static int meson_msr_probe(struct
>> platform_device *pdev)
>> match_data->msr_count * sizeof(struct meson_msr_id));
>> priv->data.msr_count = match_data->msr_count;
>>
>> - base = devm_platform_ioremap_resource(pdev, 0);
>> + base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
>> if (IS_ERR(base))
>> return PTR_ERR(base);
>>
>> + meson_clk_msr_regmap_config.max_register = resource_size(res) - 4;
>> priv->regmap = devm_regmap_init_mmio(&pdev->dev, base,
>> &meson_clk_msr_regmap_config);
>> if (IS_ERR(priv->regmap))
>> return PTR_ERR(priv->regmap);
>>
>> + memcpy(&priv->data.reg, &match_data->reg, sizeof(struct
>> msr_reg_offset));
>> +
>> root = debugfs_create_dir("meson-clk-msr", NULL);
>> clks = debugfs_create_dir("clks", root);
>>
>> @@ -667,26 +677,56 @@ static int meson_msr_probe(struct
>> platform_device *pdev)
>> static const struct meson_msr_data clk_msr_gx_data = {
>> .msr_table = (void *)clk_msr_gx,
>> .msr_count = ARRAY_SIZE(clk_msr_gx),
>> + .reg = {
>> + .duty = 0x0,
>> + .reg0 = 0x4,
>> + .reg1 = 0x8,
>> + .reg2 = 0xc,
>> + },
>
> Would be great to not duplicate this struct.
Okay, I'll change it to use the same struct across multiplechips.
>
>> };
>>
>> static const struct meson_msr_data clk_msr_m8_data = {
>> .msr_table = (void *)clk_msr_m8,
>> .msr_count = ARRAY_SIZE(clk_msr_m8),
>> + .reg = {
>> + .duty = 0x0,
>> + .reg0 = 0x4,
>> + .reg1 = 0x8,
>> + .reg2 = 0xc,
>> + },
>> };
>>
>> static const struct meson_msr_data clk_msr_axg_data = {
>> .msr_table = (void *)clk_msr_axg,
>> .msr_count = ARRAY_SIZE(clk_msr_axg),
>> + .reg = {
>> + .duty = 0x0,
>> + .reg0 = 0x4,
>> + .reg1 = 0x8,
>> + .reg2 = 0xc,
>> + },
>> };
>>
>> static const struct meson_msr_data clk_msr_g12a_data = {
>> .msr_table = (void *)clk_msr_g12a,
>> .msr_count = ARRAY_SIZE(clk_msr_g12a),
>> + .reg = {
>> + .duty = 0x0,
>> + .reg0 = 0x4,
>> + .reg1 = 0x8,
>> + .reg2 = 0xc,
>> + },
>> };
>>
>> static const struct meson_msr_data clk_msr_sm1_data = {
>> .msr_table = (void *)clk_msr_sm1,
>> .msr_count = ARRAY_SIZE(clk_msr_sm1),
>> + .reg = {
>> + .duty = 0x0,
>> + .reg0 = 0x4,
>> + .reg1 = 0x8,
>> + .reg2 = 0xc,
>> + },
>> };
>>
>> static const struct of_device_id meson_msr_match_table[] = {
>>
>
> Thanks,
> Neil
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2025-04-14 3:34 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-04-11 12:42 [PATCH 0/7] soc: amlogic: clk-measure: Add clk-measure support for C3 and S4 Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 1/7] soc: amlogic: clk-measure: Define MSR_CLK's register offset separately Chuan Liu via B4 Relay
2025-04-11 13:31 ` Neil Armstrong
2025-04-14 3:31 ` Chuan Liu
2025-04-11 12:42 ` [PATCH 2/7] dt-bindings: soc: amlogic: C3 supports clk-measure Chuan Liu via B4 Relay
2025-04-11 20:55 ` Rob Herring (Arm)
2025-04-11 12:42 ` [PATCH 3/7] dt-bindings: soc: amlogic: S4 " Chuan Liu via B4 Relay
2025-04-11 20:55 ` Rob Herring (Arm)
2025-04-11 12:42 ` [PATCH 4/7] soc: amlogic: clk-measure: Add support for C3 Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 5/7] soc: amlogic: clk-measure: Add support for S4 Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 6/7] arm64: dts: amlogic: C3: Add clk-measure controller node Chuan Liu via B4 Relay
2025-04-11 12:42 ` [PATCH 7/7] arm64: dts: amlogic: S4: " Chuan Liu via B4 Relay
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