On 11.08.2022 06:28, Bjorn Andersson wrote:
> Add driver for the GPU clock controller in the Qualcomm SC8280XP
> platform.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> ---
> drivers/clk/qcom/Kconfig | 8 +
> drivers/clk/qcom/Makefile | 1 +
> drivers/clk/qcom/gpucc-sc8280xp.c | 460 ++++++++++++++++++++++++++++++
> 3 files changed, 469 insertions(+)
> create mode 100644 drivers/clk/qcom/gpucc-sc8280xp.c
>
> diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
> index 7ea5c2208a86..64a9cf245295 100644
> --- a/drivers/clk/qcom/Kconfig
> +++ b/drivers/clk/qcom/Kconfig
> @@ -454,6 +454,14 @@ config SC_GPUCC_7280
> Say Y if you want to support graphics controller devices and
> functionality such as 3D graphics.
>
> +config SC_GPUCC_8280XP
> + tristate "SC8280XP Graphics Clock Controller"
> + select SC_GCC_8280XP
> + help
> + Support for the graphics clock controller on SC8280XP devices.
> + Say Y if you want to support graphics controller devices and
> + functionality such as 3D graphics.
> +
> config SC_LPASSCC_7280
> tristate "SC7280 Low Power Audio Subsystem (LPASS) Clock Controller"
> select SC_GCC_7280
> diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
> index 4fd88ee7679b..6cdb05152548 100644
> --- a/drivers/clk/qcom/Makefile
> +++ b/drivers/clk/qcom/Makefile
> @@ -72,6 +72,7 @@ obj-$(CONFIG_SC_GCC_8180X) += gcc-sc8180x.o
> obj-$(CONFIG_SC_GCC_8280XP) += gcc-sc8280xp.o
> obj-$(CONFIG_SC_GPUCC_7180) += gpucc-sc7180.o
> obj-$(CONFIG_SC_GPUCC_7280) += gpucc-sc7280.o
> +obj-$(CONFIG_SC_GPUCC_8280XP) += gpucc-sc8280xp.o
> obj-$(CONFIG_SC_LPASSCC_7280) += lpasscc-sc7280.o
> obj-$(CONFIG_SC_LPASS_CORECC_7180) += lpasscorecc-sc7180.o
> obj-$(CONFIG_SC_LPASS_CORECC_7280) += lpasscorecc-sc7280.o lpassaudiocc-sc7280.o
> diff --git a/drivers/clk/qcom/gpucc-sc8280xp.c b/drivers/clk/qcom/gpucc-sc8280xp.c
> new file mode 100644
> index 000000000000..555fd4ff58ab
> --- /dev/null
> +++ b/drivers/clk/qcom/gpucc-sc8280xp.c
> @@ -0,0 +1,460 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (c) 2021, The Linux Foundation. All rights reserved.
> + */
> +
> +#include <linux/clk-provider.h>
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/regmap.h>
> +
> +#include <dt-bindings/clock/qcom,gpucc-sc8280xp.h>
> +
> +#include "clk-alpha-pll.h"
> +#include "clk-branch.h"
> +#include "clk-rcg.h"
> +#include "clk-regmap-divider.h"
> +#include "common.h"
> +#include "reset.h"
> +#include "gdsc.h"
> +
> +/* Need to match the order of clocks in DT binding */
> +enum {
> + DT_BI_TCXO,
> + DT_GCC_GPU_GPLL0_CLK_SRC,
> + DT_GCC_GPU_GPLL0_DIV_CLK_SRC,
> +};
> +
> +enum {
> + P_BI_TCXO,
> + P_GCC_GPU_GPLL0_CLK_SRC,
> + P_GCC_GPU_GPLL0_DIV_CLK_SRC,
> + P_GPU_CC_PLL0_OUT_MAIN,
> + P_GPU_CC_PLL1_OUT_MAIN,
> +};
> +
> +static const struct clk_parent_data parent_data_tcxo = { .index = DT_BI_TCXO };
> +
> +static const struct pll_vco lucid_5lpe_vco[] = {
> + { 249600000, 1800000000, 0 },
> +};
> +
> +static struct alpha_pll_config gpu_cc_pll0_config = {
> + .l = 0x1c,
> + .alpha = 0xa555,
> + .config_ctl_val = 0x20485699,
> + .config_ctl_hi_val = 0x00002261,
> + .config_ctl_hi1_val = 0x2a9a699c,
> + .test_ctl_val = 0x00000000,
> + .test_ctl_hi_val = 0x00000000,
> + .test_ctl_hi1_val = 0x01800000,
> + .user_ctl_val = 0x00000000,
> + .user_ctl_hi_val = 0x00000805,
> + .user_ctl_hi1_val = 0x00000000,
> +};
> +
> +static struct clk_alpha_pll gpu_cc_pll0 = {
> + .offset = 0x0,
> + .vco_table = lucid_5lpe_vco,
> + .num_vco = ARRAY_SIZE(lucid_5lpe_vco),
> + .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
> + .clkr = {
> + .hw.init = &(struct clk_init_data){
> + .name = "gpu_cc_pll0",
> + .parent_data = &parent_data_tcxo,
> + .num_parents = 1,
> + .ops = &clk_alpha_pll_lucid_5lpe_ops,
> + },
> + },
> +};
> +
> +static struct alpha_pll_config gpu_cc_pll1_config = {
> + .l = 0x1A,
> + .alpha = 0xAAA,
> + .config_ctl_val = 0x20485699,
> + .config_ctl_hi_val = 0x00002261,
> + .config_ctl_hi1_val = 0x2A9A699C,
Lowercase hex, please.
Otherwise, this looks nice:
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
Konrad
