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SubjectRe: [PATCH v1] clk: qcom: Make common clk_hw registrations
On 10-02-19, 13:14, Jeffrey Hugo wrote:
> Several clock controller drivers define a list of clk_hw devices, and then
> register those devices in probe() before using common code to process the
> rest of initialization. Extend the common code to accept a list of clk_hw
> devices to process, thus eliminating many duplicate implementations.

Thanks, this looks nice to me. I verfified this on couple of devices.


Reviewed-by: Vinod Koul <vkoul@kernel.org>
Tested-by: Vinod Koul <vkoul@kernel.org>

> Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org>
> ---
> drivers/clk/qcom/common.c | 8 ++++++++
> drivers/clk/qcom/common.h | 2 ++
> drivers/clk/qcom/gcc-ipq8074.c | 10 ++--------
> drivers/clk/qcom/gcc-mdm9615.c | 11 ++---------
> drivers/clk/qcom/gcc-msm8996.c | 10 ++--------
> drivers/clk/qcom/gcc-msm8998.c | 10 ++++++----
> drivers/clk/qcom/gcc-qcs404.c | 9 ++-------
> drivers/clk/qcom/gcc-sdm660.c | 11 +++--------
> drivers/clk/qcom/mmcc-msm8996.c | 10 ++--------
> 9 files changed, 29 insertions(+), 52 deletions(-)
>
> diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c
> index 0a48ed5..a6b2f861 100644
> --- a/drivers/clk/qcom/common.c
> +++ b/drivers/clk/qcom/common.c
> @@ -231,6 +231,8 @@ int qcom_cc_really_probe(struct platform_device *pdev,
> struct gdsc_desc *scd;
> size_t num_clks = desc->num_clks;
> struct clk_regmap **rclks = desc->clks;
> + size_t num_clk_hws = desc->num_clk_hws;
> + struct clk_hw **clk_hws = desc->clk_hws;
>
> cc = devm_kzalloc(dev, sizeof(*cc), GFP_KERNEL);
> if (!cc)
> @@ -269,6 +271,12 @@ int qcom_cc_really_probe(struct platform_device *pdev,
>
> qcom_cc_drop_protected(dev, cc);
>
> + for (i = 0; i < num_clk_hws; i++) {
> + ret = devm_clk_hw_register(dev, clk_hws[i]);
> + if (ret)
> + return ret;
> + }
> +
> for (i = 0; i < num_clks; i++) {
> if (!rclks[i])
> continue;
> diff --git a/drivers/clk/qcom/common.h b/drivers/clk/qcom/common.h
> index 4aa33ee..1e2a8bd 100644
> --- a/drivers/clk/qcom/common.h
> +++ b/drivers/clk/qcom/common.h
> @@ -27,6 +27,8 @@ struct qcom_cc_desc {
> size_t num_resets;
> struct gdsc **gdscs;
> size_t num_gdscs;
> + struct clk_hw **clk_hws;
> + size_t num_clk_hws;
> };
>
> /**
> diff --git a/drivers/clk/qcom/gcc-ipq8074.c b/drivers/clk/qcom/gcc-ipq8074.c
> index 505c626..0e32892 100644
> --- a/drivers/clk/qcom/gcc-ipq8074.c
> +++ b/drivers/clk/qcom/gcc-ipq8074.c
> @@ -4715,18 +4715,12 @@ enum {
> .num_clks = ARRAY_SIZE(gcc_ipq8074_clks),
> .resets = gcc_ipq8074_resets,
> .num_resets = ARRAY_SIZE(gcc_ipq8074_resets),
> + .clk_hws = gcc_ipq8074_hws,
> + .num_clk_hws = ARRAY_SIZE(gcc_ipq8074_hws),
> };
>
> static int gcc_ipq8074_probe(struct platform_device *pdev)
> {
> - int ret, i;
> -
> - for (i = 0; i < ARRAY_SIZE(gcc_ipq8074_hws); i++) {
> - ret = devm_clk_hw_register(&pdev->dev, gcc_ipq8074_hws[i]);
> - if (ret)
> - return ret;
> - }
> -
> return qcom_cc_probe(pdev, &gcc_ipq8074_desc);
> }
>
> diff --git a/drivers/clk/qcom/gcc-mdm9615.c b/drivers/clk/qcom/gcc-mdm9615.c
> index 849046f..8c6d931 100644
> --- a/drivers/clk/qcom/gcc-mdm9615.c
> +++ b/drivers/clk/qcom/gcc-mdm9615.c
> @@ -1702,6 +1702,8 @@ enum {
> .num_clks = ARRAY_SIZE(gcc_mdm9615_clks),
> .resets = gcc_mdm9615_resets,
> .num_resets = ARRAY_SIZE(gcc_mdm9615_resets),
> + .clk_hws = gcc_mdm9615_hws,
> + .num_clk_hws = ARRAY_SIZE(gcc_mdm9615_hws),
> };
>
> static const struct of_device_id gcc_mdm9615_match_table[] = {
> @@ -1712,21 +1714,12 @@ enum {
>
> static int gcc_mdm9615_probe(struct platform_device *pdev)
> {
> - struct device *dev = &pdev->dev;
> struct regmap *regmap;
> - int ret;
> - int i;
>
> regmap = qcom_cc_map(pdev, &gcc_mdm9615_desc);
> if (IS_ERR(regmap))
> return PTR_ERR(regmap);
>
> - for (i = 0; i < ARRAY_SIZE(gcc_mdm9615_hws); i++) {
> - ret = devm_clk_hw_register(dev, gcc_mdm9615_hws[i]);
> - if (ret)
> - return ret;
> - }
> -
> return qcom_cc_really_probe(pdev, &gcc_mdm9615_desc, regmap);
> }
>
> diff --git a/drivers/clk/qcom/gcc-msm8996.c b/drivers/clk/qcom/gcc-msm8996.c
> index 9d13617..4632b92 100644
> --- a/drivers/clk/qcom/gcc-msm8996.c
> +++ b/drivers/clk/qcom/gcc-msm8996.c
> @@ -3656,6 +3656,8 @@ enum {
> .num_resets = ARRAY_SIZE(gcc_msm8996_resets),
> .gdscs = gcc_msm8996_gdscs,
> .num_gdscs = ARRAY_SIZE(gcc_msm8996_gdscs),
> + .clk_hws = gcc_msm8996_hws,
> + .num_clk_hws = ARRAY_SIZE(gcc_msm8996_hws),
> };
>
> static const struct of_device_id gcc_msm8996_match_table[] = {
> @@ -3666,8 +3668,6 @@ enum {
>
> static int gcc_msm8996_probe(struct platform_device *pdev)
> {
> - struct device *dev = &pdev->dev;
> - int i, ret;
> struct regmap *regmap;
>
> regmap = qcom_cc_map(pdev, &gcc_msm8996_desc);
> @@ -3680,12 +3680,6 @@ static int gcc_msm8996_probe(struct platform_device *pdev)
> */
> regmap_update_bits(regmap, 0x52008, BIT(21), BIT(21));
>
> - for (i = 0; i < ARRAY_SIZE(gcc_msm8996_hws); i++) {
> - ret = devm_clk_hw_register(dev, gcc_msm8996_hws[i]);
> - if (ret)
> - return ret;
> - }
> -
> return qcom_cc_really_probe(pdev, &gcc_msm8996_desc, regmap);
> }
>
> diff --git a/drivers/clk/qcom/gcc-msm8998.c b/drivers/clk/qcom/gcc-msm8998.c
> index 3cbabbb..c240fba 100644
> --- a/drivers/clk/qcom/gcc-msm8998.c
> +++ b/drivers/clk/qcom/gcc-msm8998.c
> @@ -2959,6 +2959,10 @@ enum {
> .fast_io = true,
> };
>
> +static struct clk_hw *gcc_msm8998_hws[] = {
> + &xo.hw,
> +};
> +
> static const struct qcom_cc_desc gcc_msm8998_desc = {
> .config = &gcc_msm8998_regmap_config,
> .clks = gcc_msm8998_clocks,
> @@ -2967,6 +2971,8 @@ enum {
> .num_resets = ARRAY_SIZE(gcc_msm8998_resets),
> .gdscs = gcc_msm8998_gdscs,
> .num_gdscs = ARRAY_SIZE(gcc_msm8998_gdscs),
> + .clk_hws = gcc_msm8998_hws,
> + .num_clk_hws = ARRAY_SIZE(gcc_msm8998_hws),
> };
>
> static int gcc_msm8998_probe(struct platform_device *pdev)
> @@ -2986,10 +2992,6 @@ static int gcc_msm8998_probe(struct platform_device *pdev)
> if (ret)
> return ret;
>
> - ret = devm_clk_hw_register(&pdev->dev, &xo.hw);
> - if (ret)
> - return ret;
> -
> return qcom_cc_really_probe(pdev, &gcc_msm8998_desc, regmap);
> }
>
> diff --git a/drivers/clk/qcom/gcc-qcs404.c b/drivers/clk/qcom/gcc-qcs404.c
> index 64da032..a7b2fe0 100644
> --- a/drivers/clk/qcom/gcc-qcs404.c
> +++ b/drivers/clk/qcom/gcc-qcs404.c
> @@ -2692,6 +2692,8 @@ enum {
> .num_clks = ARRAY_SIZE(gcc_qcs404_clocks),
> .resets = gcc_qcs404_resets,
> .num_resets = ARRAY_SIZE(gcc_qcs404_resets),
> + .clk_hws = gcc_qcs404_hws,
> + .num_clk_hws = ARRAY_SIZE(gcc_qcs404_hws),
> };
>
> static const struct of_device_id gcc_qcs404_match_table[] = {
> @@ -2703,7 +2705,6 @@ enum {
> static int gcc_qcs404_probe(struct platform_device *pdev)
> {
> struct regmap *regmap;
> - int ret, i;
>
> regmap = qcom_cc_map(pdev, &gcc_qcs404_desc);
> if (IS_ERR(regmap))
> @@ -2711,12 +2712,6 @@ static int gcc_qcs404_probe(struct platform_device *pdev)
>
> clk_alpha_pll_configure(&gpll3_out_main, regmap, &gpll3_config);
>
> - for (i = 0; i < ARRAY_SIZE(gcc_qcs404_hws); i++) {
> - ret = devm_clk_hw_register(&pdev->dev, gcc_qcs404_hws[i]);
> - if (ret)
> - return ret;
> - }
> -
> return qcom_cc_really_probe(pdev, &gcc_qcs404_desc, regmap);
> }
>
> diff --git a/drivers/clk/qcom/gcc-sdm660.c b/drivers/clk/qcom/gcc-sdm660.c
> index ba239ea..8827db2 100644
> --- a/drivers/clk/qcom/gcc-sdm660.c
> +++ b/drivers/clk/qcom/gcc-sdm660.c
> @@ -2420,6 +2420,8 @@ enum {
> .num_resets = ARRAY_SIZE(gcc_sdm660_resets),
> .gdscs = gcc_sdm660_gdscs,
> .num_gdscs = ARRAY_SIZE(gcc_sdm660_gdscs),
> + .clk_hws = gcc_sdm660_hws,
> + .num_clk_hws = ARRAY_SIZE(gcc_sdm660_hws),
> };
>
> static const struct of_device_id gcc_sdm660_match_table[] = {
> @@ -2431,7 +2433,7 @@ enum {
>
> static int gcc_sdm660_probe(struct platform_device *pdev)
> {
> - int i, ret;
> + int ret;
> struct regmap *regmap;
>
> regmap = qcom_cc_map(pdev, &gcc_sdm660_desc);
> @@ -2446,13 +2448,6 @@ static int gcc_sdm660_probe(struct platform_device *pdev)
> if (ret)
> return ret;
>
> - /* Register the hws */
> - for (i = 0; i < ARRAY_SIZE(gcc_sdm660_hws); i++) {
> - ret = devm_clk_hw_register(&pdev->dev, gcc_sdm660_hws[i]);
> - if (ret)
> - return ret;
> - }
> -
> return qcom_cc_really_probe(pdev, &gcc_sdm660_desc, regmap);
> }
>
> diff --git a/drivers/clk/qcom/mmcc-msm8996.c b/drivers/clk/qcom/mmcc-msm8996.c
> index 7d4ee10..7235510 100644
> --- a/drivers/clk/qcom/mmcc-msm8996.c
> +++ b/drivers/clk/qcom/mmcc-msm8996.c
> @@ -3347,6 +3347,8 @@ enum {
> .num_resets = ARRAY_SIZE(mmcc_msm8996_resets),
> .gdscs = mmcc_msm8996_gdscs,
> .num_gdscs = ARRAY_SIZE(mmcc_msm8996_gdscs),
> + .clk_hws = mmcc_msm8996_hws,
> + .num_clk_hws = ARRAY_SIZE(mmcc_msm8996_hws),
> };
>
> static const struct of_device_id mmcc_msm8996_match_table[] = {
> @@ -3357,8 +3359,6 @@ enum {
>
> static int mmcc_msm8996_probe(struct platform_device *pdev)
> {
> - struct device *dev = &pdev->dev;
> - int i, ret;
> struct regmap *regmap;
>
> regmap = qcom_cc_map(pdev, &mmcc_msm8996_desc);
> @@ -3370,12 +3370,6 @@ static int mmcc_msm8996_probe(struct platform_device *pdev)
> /* Disable the NoC FSM for mmss_mmagic_cfg_ahb_clk */
> regmap_update_bits(regmap, 0x5054, BIT(15), 0);
>
> - for (i = 0; i < ARRAY_SIZE(mmcc_msm8996_hws); i++) {
> - ret = devm_clk_hw_register(dev, mmcc_msm8996_hws[i]);
> - if (ret)
> - return ret;
> - }
> -
> return qcom_cc_really_probe(pdev, &mmcc_msm8996_desc, regmap);
> }
>
> --
> Qualcomm Datacenter Technologies as an affiliate of Qualcomm Technologies, Inc.
> Qualcomm Technologies, Inc. is a member of the
> Code Aurora Forum, a Linux Foundation Collaborative Project.

--
~Vinod

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