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Message-ID: <91b498fd-f09c-e877-f14b-2f21529d7cb0@baylibre.com>
Date: Tue, 11 Dec 2018 10:18:22 +0100
From: Neil Armstrong <narmstrong@...libre.com>
To: Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
linux-amlogic@...ts.infradead.org, linux-clk@...r.kernel.org,
jbrunet@...libre.com, khilman@...libre.com, robh+dt@...nel.org
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
sboyd@...nel.org, mturquette@...libre.com
Subject: Re: [PATCH 2/5] clk: meson: meson8b: use a separate clock table for
Meson8
On 08/12/2018 18:12, Martin Blumenstingl wrote:
> The Meson8 SoC is slightly different compared to Meson8b and Meson8m2
> because it does not have the glitch-free Mali GPU clock mux. For Meson8b
> and Meson8m2 there are currently no known differences.
>
> Add a separate clk_hw_onecell_data table for Meson8 so these differences
> can be implemented. For now meson8_hw_onecell_data is a clone of our
> existing meson8b_hw_onecell_data.
>
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
> ---
> drivers/clk/meson/meson8b.c | 203 ++++++++++++++++++++++++++++++++++--
> 1 file changed, 197 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/clk/meson/meson8b.c b/drivers/clk/meson/meson8b.c
> index 950d0e548c75..0b9353d8d4fd 100644
> --- a/drivers/clk/meson/meson8b.c
> +++ b/drivers/clk/meson/meson8b.c
> @@ -1659,6 +1659,185 @@ static MESON_GATE(meson8b_ao_ahb_sram, HHI_GCLK_AO, 1);
> static MESON_GATE(meson8b_ao_ahb_bus, HHI_GCLK_AO, 2);
> static MESON_GATE(meson8b_ao_iface, HHI_GCLK_AO, 3);
>
> +static struct clk_hw_onecell_data meson8_hw_onecell_data = {
> + .hws = {
> + [CLKID_XTAL] = &meson8b_xtal.hw,
> + [CLKID_PLL_FIXED] = &meson8b_fixed_pll.hw,
> + [CLKID_PLL_VID] = &meson8b_vid_pll.hw,
> + [CLKID_PLL_SYS] = &meson8b_sys_pll.hw,
> + [CLKID_FCLK_DIV2] = &meson8b_fclk_div2.hw,
> + [CLKID_FCLK_DIV3] = &meson8b_fclk_div3.hw,
> + [CLKID_FCLK_DIV4] = &meson8b_fclk_div4.hw,
> + [CLKID_FCLK_DIV5] = &meson8b_fclk_div5.hw,
> + [CLKID_FCLK_DIV7] = &meson8b_fclk_div7.hw,
> + [CLKID_CPUCLK] = &meson8b_cpu_clk.hw,
> + [CLKID_MPEG_SEL] = &meson8b_mpeg_clk_sel.hw,
> + [CLKID_MPEG_DIV] = &meson8b_mpeg_clk_div.hw,
> + [CLKID_CLK81] = &meson8b_clk81.hw,
> + [CLKID_DDR] = &meson8b_ddr.hw,
> + [CLKID_DOS] = &meson8b_dos.hw,
> + [CLKID_ISA] = &meson8b_isa.hw,
> + [CLKID_PL301] = &meson8b_pl301.hw,
> + [CLKID_PERIPHS] = &meson8b_periphs.hw,
> + [CLKID_SPICC] = &meson8b_spicc.hw,
> + [CLKID_I2C] = &meson8b_i2c.hw,
> + [CLKID_SAR_ADC] = &meson8b_sar_adc.hw,
> + [CLKID_SMART_CARD] = &meson8b_smart_card.hw,
> + [CLKID_RNG0] = &meson8b_rng0.hw,
> + [CLKID_UART0] = &meson8b_uart0.hw,
> + [CLKID_SDHC] = &meson8b_sdhc.hw,
> + [CLKID_STREAM] = &meson8b_stream.hw,
> + [CLKID_ASYNC_FIFO] = &meson8b_async_fifo.hw,
> + [CLKID_SDIO] = &meson8b_sdio.hw,
> + [CLKID_ABUF] = &meson8b_abuf.hw,
> + [CLKID_HIU_IFACE] = &meson8b_hiu_iface.hw,
> + [CLKID_ASSIST_MISC] = &meson8b_assist_misc.hw,
> + [CLKID_SPI] = &meson8b_spi.hw,
> + [CLKID_I2S_SPDIF] = &meson8b_i2s_spdif.hw,
> + [CLKID_ETH] = &meson8b_eth.hw,
> + [CLKID_DEMUX] = &meson8b_demux.hw,
> + [CLKID_AIU_GLUE] = &meson8b_aiu_glue.hw,
> + [CLKID_IEC958] = &meson8b_iec958.hw,
> + [CLKID_I2S_OUT] = &meson8b_i2s_out.hw,
> + [CLKID_AMCLK] = &meson8b_amclk.hw,
> + [CLKID_AIFIFO2] = &meson8b_aififo2.hw,
> + [CLKID_MIXER] = &meson8b_mixer.hw,
> + [CLKID_MIXER_IFACE] = &meson8b_mixer_iface.hw,
> + [CLKID_ADC] = &meson8b_adc.hw,
> + [CLKID_BLKMV] = &meson8b_blkmv.hw,
> + [CLKID_AIU] = &meson8b_aiu.hw,
> + [CLKID_UART1] = &meson8b_uart1.hw,
> + [CLKID_G2D] = &meson8b_g2d.hw,
> + [CLKID_USB0] = &meson8b_usb0.hw,
> + [CLKID_USB1] = &meson8b_usb1.hw,
> + [CLKID_RESET] = &meson8b_reset.hw,
> + [CLKID_NAND] = &meson8b_nand.hw,
> + [CLKID_DOS_PARSER] = &meson8b_dos_parser.hw,
> + [CLKID_USB] = &meson8b_usb.hw,
> + [CLKID_VDIN1] = &meson8b_vdin1.hw,
> + [CLKID_AHB_ARB0] = &meson8b_ahb_arb0.hw,
> + [CLKID_EFUSE] = &meson8b_efuse.hw,
> + [CLKID_BOOT_ROM] = &meson8b_boot_rom.hw,
> + [CLKID_AHB_DATA_BUS] = &meson8b_ahb_data_bus.hw,
> + [CLKID_AHB_CTRL_BUS] = &meson8b_ahb_ctrl_bus.hw,
> + [CLKID_HDMI_INTR_SYNC] = &meson8b_hdmi_intr_sync.hw,
> + [CLKID_HDMI_PCLK] = &meson8b_hdmi_pclk.hw,
> + [CLKID_USB1_DDR_BRIDGE] = &meson8b_usb1_ddr_bridge.hw,
> + [CLKID_USB0_DDR_BRIDGE] = &meson8b_usb0_ddr_bridge.hw,
> + [CLKID_MMC_PCLK] = &meson8b_mmc_pclk.hw,
> + [CLKID_DVIN] = &meson8b_dvin.hw,
> + [CLKID_UART2] = &meson8b_uart2.hw,
> + [CLKID_SANA] = &meson8b_sana.hw,
> + [CLKID_VPU_INTR] = &meson8b_vpu_intr.hw,
> + [CLKID_SEC_AHB_AHB3_BRIDGE] = &meson8b_sec_ahb_ahb3_bridge.hw,
> + [CLKID_CLK81_A9] = &meson8b_clk81_a9.hw,
> + [CLKID_VCLK2_VENCI0] = &meson8b_vclk2_venci0.hw,
> + [CLKID_VCLK2_VENCI1] = &meson8b_vclk2_venci1.hw,
> + [CLKID_VCLK2_VENCP0] = &meson8b_vclk2_vencp0.hw,
> + [CLKID_VCLK2_VENCP1] = &meson8b_vclk2_vencp1.hw,
> + [CLKID_GCLK_VENCI_INT] = &meson8b_gclk_venci_int.hw,
> + [CLKID_GCLK_VENCP_INT] = &meson8b_gclk_vencp_int.hw,
> + [CLKID_DAC_CLK] = &meson8b_dac_clk.hw,
> + [CLKID_AOCLK_GATE] = &meson8b_aoclk_gate.hw,
> + [CLKID_IEC958_GATE] = &meson8b_iec958_gate.hw,
> + [CLKID_ENC480P] = &meson8b_enc480p.hw,
> + [CLKID_RNG1] = &meson8b_rng1.hw,
> + [CLKID_GCLK_VENCL_INT] = &meson8b_gclk_vencl_int.hw,
> + [CLKID_VCLK2_VENCLMCC] = &meson8b_vclk2_venclmcc.hw,
> + [CLKID_VCLK2_VENCL] = &meson8b_vclk2_vencl.hw,
> + [CLKID_VCLK2_OTHER] = &meson8b_vclk2_other.hw,
> + [CLKID_EDP] = &meson8b_edp.hw,
> + [CLKID_AO_MEDIA_CPU] = &meson8b_ao_media_cpu.hw,
> + [CLKID_AO_AHB_SRAM] = &meson8b_ao_ahb_sram.hw,
> + [CLKID_AO_AHB_BUS] = &meson8b_ao_ahb_bus.hw,
> + [CLKID_AO_IFACE] = &meson8b_ao_iface.hw,
> + [CLKID_MPLL0] = &meson8b_mpll0.hw,
> + [CLKID_MPLL1] = &meson8b_mpll1.hw,
> + [CLKID_MPLL2] = &meson8b_mpll2.hw,
> + [CLKID_MPLL0_DIV] = &meson8b_mpll0_div.hw,
> + [CLKID_MPLL1_DIV] = &meson8b_mpll1_div.hw,
> + [CLKID_MPLL2_DIV] = &meson8b_mpll2_div.hw,
> + [CLKID_CPU_IN_SEL] = &meson8b_cpu_in_sel.hw,
> + [CLKID_CPU_IN_DIV2] = &meson8b_cpu_in_div2.hw,
> + [CLKID_CPU_IN_DIV3] = &meson8b_cpu_in_div3.hw,
> + [CLKID_CPU_SCALE_DIV] = &meson8b_cpu_scale_div.hw,
> + [CLKID_CPU_SCALE_OUT_SEL] = &meson8b_cpu_scale_out_sel.hw,
> + [CLKID_MPLL_PREDIV] = &meson8b_mpll_prediv.hw,
> + [CLKID_FCLK_DIV2_DIV] = &meson8b_fclk_div2_div.hw,
> + [CLKID_FCLK_DIV3_DIV] = &meson8b_fclk_div3_div.hw,
> + [CLKID_FCLK_DIV4_DIV] = &meson8b_fclk_div4_div.hw,
> + [CLKID_FCLK_DIV5_DIV] = &meson8b_fclk_div5_div.hw,
> + [CLKID_FCLK_DIV7_DIV] = &meson8b_fclk_div7_div.hw,
> + [CLKID_NAND_SEL] = &meson8b_nand_clk_sel.hw,
> + [CLKID_NAND_DIV] = &meson8b_nand_clk_div.hw,
> + [CLKID_NAND_CLK] = &meson8b_nand_clk_gate.hw,
> + [CLKID_PLL_FIXED_DCO] = &meson8b_fixed_pll_dco.hw,
> + [CLKID_HDMI_PLL_DCO] = &meson8b_hdmi_pll_dco.hw,
> + [CLKID_PLL_SYS_DCO] = &meson8b_sys_pll_dco.hw,
> + [CLKID_CPU_CLK_DIV2] = &meson8b_cpu_clk_div2.hw,
> + [CLKID_CPU_CLK_DIV3] = &meson8b_cpu_clk_div3.hw,
> + [CLKID_CPU_CLK_DIV4] = &meson8b_cpu_clk_div4.hw,
> + [CLKID_CPU_CLK_DIV5] = &meson8b_cpu_clk_div5.hw,
> + [CLKID_CPU_CLK_DIV6] = &meson8b_cpu_clk_div6.hw,
> + [CLKID_CPU_CLK_DIV7] = &meson8b_cpu_clk_div7.hw,
> + [CLKID_CPU_CLK_DIV8] = &meson8b_cpu_clk_div8.hw,
> + [CLKID_ABP_SEL] = &meson8b_abp_clk_sel.hw,
> + [CLKID_ABP] = &meson8b_abp_clk_gate.hw,
> + [CLKID_PERIPH_SEL] = &meson8b_periph_clk_sel.hw,
> + [CLKID_PERIPH] = &meson8b_periph_clk_gate.hw,
> + [CLKID_AXI_SEL] = &meson8b_axi_clk_sel.hw,
> + [CLKID_AXI] = &meson8b_axi_clk_gate.hw,
> + [CLKID_L2_DRAM_SEL] = &meson8b_l2_dram_clk_sel.hw,
> + [CLKID_L2_DRAM] = &meson8b_l2_dram_clk_gate.hw,
> + [CLKID_HDMI_PLL_LVDS_OUT] = &meson8b_hdmi_pll_lvds_out.hw,
> + [CLKID_HDMI_PLL_HDMI_OUT] = &meson8b_hdmi_pll_hdmi_out.hw,
> + [CLKID_VID_PLL_IN_SEL] = &meson8b_vid_pll_in_sel.hw,
> + [CLKID_VID_PLL_IN_EN] = &meson8b_vid_pll_in_en.hw,
> + [CLKID_VID_PLL_PRE_DIV] = &meson8b_vid_pll_pre_div.hw,
> + [CLKID_VID_PLL_POST_DIV] = &meson8b_vid_pll_post_div.hw,
> + [CLKID_VID_PLL_FINAL_DIV] = &meson8b_vid_pll_final_div.hw,
> + [CLKID_VCLK_IN_SEL] = &meson8b_vclk_in_sel.hw,
> + [CLKID_VCLK_IN_EN] = &meson8b_vclk_in_en.hw,
> + [CLKID_VCLK_DIV1] = &meson8b_vclk_div1_gate.hw,
> + [CLKID_VCLK_DIV2_DIV] = &meson8b_vclk_div2_div.hw,
> + [CLKID_VCLK_DIV2] = &meson8b_vclk_div2_div_gate.hw,
> + [CLKID_VCLK_DIV4_DIV] = &meson8b_vclk_div4_div.hw,
> + [CLKID_VCLK_DIV4] = &meson8b_vclk_div4_div_gate.hw,
> + [CLKID_VCLK_DIV6_DIV] = &meson8b_vclk_div6_div.hw,
> + [CLKID_VCLK_DIV6] = &meson8b_vclk_div6_div_gate.hw,
> + [CLKID_VCLK_DIV12_DIV] = &meson8b_vclk_div12_div.hw,
> + [CLKID_VCLK_DIV12] = &meson8b_vclk_div12_div_gate.hw,
> + [CLKID_VCLK2_IN_SEL] = &meson8b_vclk2_in_sel.hw,
> + [CLKID_VCLK2_IN_EN] = &meson8b_vclk2_clk_in_en.hw,
> + [CLKID_VCLK2_DIV1] = &meson8b_vclk2_div1_gate.hw,
> + [CLKID_VCLK2_DIV2_DIV] = &meson8b_vclk2_div2_div.hw,
> + [CLKID_VCLK2_DIV2] = &meson8b_vclk2_div2_div_gate.hw,
> + [CLKID_VCLK2_DIV4_DIV] = &meson8b_vclk2_div4_div.hw,
> + [CLKID_VCLK2_DIV4] = &meson8b_vclk2_div4_div_gate.hw,
> + [CLKID_VCLK2_DIV6_DIV] = &meson8b_vclk2_div6_div.hw,
> + [CLKID_VCLK2_DIV6] = &meson8b_vclk2_div6_div_gate.hw,
> + [CLKID_VCLK2_DIV12_DIV] = &meson8b_vclk2_div12_div.hw,
> + [CLKID_VCLK2_DIV12] = &meson8b_vclk2_div12_div_gate.hw,
> + [CLKID_CTS_ENCT_SEL] = &meson8b_cts_enct_sel.hw,
> + [CLKID_CTS_ENCT] = &meson8b_cts_enct.hw,
> + [CLKID_CTS_ENCP_SEL] = &meson8b_cts_encp_sel.hw,
> + [CLKID_CTS_ENCP] = &meson8b_cts_encp.hw,
> + [CLKID_CTS_ENCI_SEL] = &meson8b_cts_enci_sel.hw,
> + [CLKID_CTS_ENCI] = &meson8b_cts_enci.hw,
> + [CLKID_HDMI_TX_PIXEL_SEL] = &meson8b_hdmi_tx_pixel_sel.hw,
> + [CLKID_HDMI_TX_PIXEL] = &meson8b_hdmi_tx_pixel.hw,
> + [CLKID_CTS_ENCL_SEL] = &meson8b_cts_encl_sel.hw,
> + [CLKID_CTS_ENCL] = &meson8b_cts_encl.hw,
> + [CLKID_CTS_VDAC0_SEL] = &meson8b_cts_vdac0_sel.hw,
> + [CLKID_CTS_VDAC0] = &meson8b_cts_vdac0.hw,
> + [CLKID_HDMI_SYS_SEL] = &meson8b_hdmi_sys_sel.hw,
> + [CLKID_HDMI_SYS_DIV] = &meson8b_hdmi_sys_div.hw,
> + [CLKID_HDMI_SYS] = &meson8b_hdmi_sys.hw,
> + [CLK_NR_CLKS] = NULL,
> + },
> + .num = CLK_NR_CLKS,
> +};
> +
> static struct clk_hw_onecell_data meson8b_hw_onecell_data = {
> .hws = {
> [CLKID_XTAL] = &meson8b_xtal.hw,
> @@ -2132,7 +2311,6 @@ static int meson8b_cpu_clk_notifier_cb(struct notifier_block *nb,
>
> static struct meson8b_nb_data meson8b_cpu_nb_data = {
> .nb.notifier_call = meson8b_cpu_clk_notifier_cb,
> - .onecell_data = &meson8b_hw_onecell_data,
> };
>
> static const struct regmap_config clkc_regmap_config = {
> @@ -2141,7 +2319,8 @@ static const struct regmap_config clkc_regmap_config = {
> .reg_stride = 4,
> };
>
> -static void __init meson8b_clkc_init(struct device_node *np)
> +static void __init meson8b_clkc_init_common(struct device_node *np,
> + struct clk_hw_onecell_data *clk_hw_onecell_data)
> {
> struct meson8b_clk_reset *rstc;
> const char *notifier_clk_name;
> @@ -2192,14 +2371,16 @@ static void __init meson8b_clkc_init(struct device_node *np)
> */
> for (i = CLKID_XTAL; i < CLK_NR_CLKS; i++) {
> /* array might be sparse */
> - if (!meson8b_hw_onecell_data.hws[i])
> + if (!clk_hw_onecell_data->hws[i])
> continue;
>
> - ret = clk_hw_register(NULL, meson8b_hw_onecell_data.hws[i]);
> + ret = clk_hw_register(NULL, clk_hw_onecell_data->hws[i]);
> if (ret)
> return;
> }
>
> + meson8b_cpu_nb_data.onecell_data = clk_hw_onecell_data;
> +
> /*
> * FIXME we shouldn't program the muxes in notifier handlers. The
> * tricky programming sequence will be handled by the forthcoming
> @@ -2215,13 +2396,23 @@ static void __init meson8b_clkc_init(struct device_node *np)
> }
>
> ret = of_clk_add_hw_provider(np, of_clk_hw_onecell_get,
> - &meson8b_hw_onecell_data);
> + clk_hw_onecell_data);
> if (ret)
> pr_err("%s: failed to register clock provider\n", __func__);
> }
>
> +static void __init meson8_clkc_init(struct device_node *np)
> +{
> + return meson8b_clkc_init_common(np, &meson8_hw_onecell_data);
> +}
> +
> +static void __init meson8b_clkc_init(struct device_node *np)
> +{
> + return meson8b_clkc_init_common(np, &meson8b_hw_onecell_data);
> +}
> +
> CLK_OF_DECLARE_DRIVER(meson8_clkc, "amlogic,meson8-clkc",
> - meson8b_clkc_init);
> + meson8_clkc_init);
> CLK_OF_DECLARE_DRIVER(meson8b_clkc, "amlogic,meson8b-clkc",
> meson8b_clkc_init);
> CLK_OF_DECLARE_DRIVER(meson8m2_clkc, "amlogic,meson8m2-clkc",
>
This would happen one day !
Reviewed-by: Neil Armstrong <narmstrong@...libre.com>
Neil
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