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Thu, 28 Mar 2019 06:27:22 -0700 (PDT) Received: from localhost ([70.231.7.113]) by smtp.gmail.com with ESMTPSA id w141sm7042410oie.1.2019.03.28.06.27.21 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 28 Mar 2019 06:27:22 -0700 (PDT) Date: Thu, 28 Mar 2019 08:27:21 -0500 From: Rob Herring To: Icenowy Zheng Subject: Re: [PATCH 08/14] clk: sunxi-ng: v3s: add Allwinner V3 support Message-ID: <20190328132721.GA32178@bogus> References: <20190312152256.35574-1-icenowy@aosc.io> <20190312152256.35574-9-icenowy@aosc.io> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190312152256.35574-9-icenowy@aosc.io> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190328_062724_959860_DB8BAE8E X-CRM114-Status: GOOD ( 21.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Maxime Ripard , Linus Walleij , linux-sunxi@googlegroups.com, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, Chen-Yu Tsai , Jagan Teki , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Mar 12, 2019 at 11:22:50PM +0800, Icenowy Zheng wrote: > Allwinner V3 has the same main die with V3s, but with more pins wired. > There's a I2S bus on V3 that is not available on V3s. > > Add the V3-only peripheral's clocks and reset to the V3s CCU driver, > bound to a new V3 compatible string. The driver name is not changed > because it's part of the device tree binding (the header file name). > > Signed-off-by: Icenowy Zheng > --- > drivers/clk/sunxi-ng/ccu-sun8i-v3s.c | 225 +++++++++++++++++++++- > drivers/clk/sunxi-ng/ccu-sun8i-v3s.h | 2 +- > include/dt-bindings/clock/sun8i-v3s-ccu.h | 4 + > include/dt-bindings/reset/sun8i-v3s-ccu.h | 3 + > 4 files changed, 231 insertions(+), 3 deletions(-) > > diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c > index cbba04f5f761..81450ea8faa2 100644 > --- a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c > +++ b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c > @@ -242,6 +242,8 @@ static SUNXI_CCU_GATE(bus_codec_clk, "bus-codec", "apb1", > 0x068, BIT(0), 0); > static SUNXI_CCU_GATE(bus_pio_clk, "bus-pio", "apb1", > 0x068, BIT(5), 0); > +static SUNXI_CCU_GATE(bus_i2s0_clk, "bus-i2s0", "apb1", > + 0x068, BIT(12), 0); > > static SUNXI_CCU_GATE(bus_i2c0_clk, "bus-i2c0", "apb2", > 0x06c, BIT(0), 0); > @@ -313,6 +315,11 @@ static SUNXI_CCU_MP_WITH_MUX_GATE(spi0_clk, "spi0", mod0_default_parents, 0x0a0, > BIT(31), /* gate */ > 0); > > +static const char * const i2s_parents[] = { "pll-audio-8x", "pll-audio-4x", > + "pll-audio-2x", "pll-audio" }; > +static SUNXI_CCU_MUX_WITH_GATE(i2s0_clk, "i2s0", i2s_parents, > + 0x0b0, 16, 2, BIT(31), CLK_SET_RATE_PARENT); > + > static SUNXI_CCU_GATE(usb_phy0_clk, "usb-phy0", "osc24M", > 0x0cc, BIT(8), 0); > static SUNXI_CCU_GATE(usb_ohci0_clk, "usb-ohci0", "osc24M", > @@ -445,6 +452,80 @@ static struct ccu_common *sun8i_v3s_ccu_clks[] = { > &mipi_csi_clk.common, > }; > > +static struct ccu_common *sun8i_v3_ccu_clks[] = { Seems like a bunch of duplication for just 2 differences in clocks. Can't you keep the definitions the same and just skip registering the clocks not present? > + &pll_cpu_clk.common, > + &pll_audio_base_clk.common, > + &pll_video_clk.common, > + &pll_ve_clk.common, > + &pll_ddr0_clk.common, > + &pll_periph0_clk.common, > + &pll_isp_clk.common, > + &pll_periph1_clk.common, > + &pll_ddr1_clk.common, > + &cpu_clk.common, > + &axi_clk.common, > + &ahb1_clk.common, > + &apb1_clk.common, > + &apb2_clk.common, > + &ahb2_clk.common, > + &bus_ce_clk.common, > + &bus_dma_clk.common, > + &bus_mmc0_clk.common, > + &bus_mmc1_clk.common, > + &bus_mmc2_clk.common, > + &bus_dram_clk.common, > + &bus_emac_clk.common, > + &bus_hstimer_clk.common, > + &bus_spi0_clk.common, > + &bus_otg_clk.common, > + &bus_ehci0_clk.common, > + &bus_ohci0_clk.common, > + &bus_ve_clk.common, > + &bus_tcon0_clk.common, > + &bus_csi_clk.common, > + &bus_de_clk.common, > + &bus_codec_clk.common, > + &bus_pio_clk.common, > + &bus_i2s0_clk.common, > + &bus_i2c0_clk.common, > + &bus_i2c1_clk.common, > + &bus_uart0_clk.common, > + &bus_uart1_clk.common, > + &bus_uart2_clk.common, > + &bus_ephy_clk.common, > + &bus_dbg_clk.common, > + &mmc0_clk.common, > + &mmc0_sample_clk.common, > + &mmc0_output_clk.common, > + &mmc1_clk.common, > + &mmc1_sample_clk.common, > + &mmc1_output_clk.common, > + &mmc2_clk.common, > + &mmc2_sample_clk.common, > + &mmc2_output_clk.common, > + &ce_clk.common, > + &spi0_clk.common, > + &i2s0_clk.common, > + &usb_phy0_clk.common, > + &usb_ohci0_clk.common, > + &dram_clk.common, > + &dram_ve_clk.common, > + &dram_csi_clk.common, > + &dram_ohci_clk.common, > + &dram_ehci_clk.common, > + &de_clk.common, > + &tcon_clk.common, > + &csi_misc_clk.common, > + &csi0_mclk_clk.common, > + &csi1_sclk_clk.common, > + &csi1_mclk_clk.common, > + &ve_clk.common, > + &ac_dig_clk.common, > + &avs_clk.common, > + &mbus_clk.common, > + &mipi_csi_clk.common, > +}; > + > /* We hardcode the divider to 4 for now */ > static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", > "pll-audio-base", 4, 1, CLK_SET_RATE_PARENT); > @@ -534,6 +615,85 @@ static struct clk_hw_onecell_data sun8i_v3s_hw_clks = { > .num = CLK_NUMBER, > }; > > +static struct clk_hw_onecell_data sun8i_v3_hw_clks = { > + .hws = { > + [CLK_PLL_CPU] = &pll_cpu_clk.common.hw, > + [CLK_PLL_AUDIO_BASE] = &pll_audio_base_clk.common.hw, > + [CLK_PLL_AUDIO] = &pll_audio_clk.hw, > + [CLK_PLL_AUDIO_2X] = &pll_audio_2x_clk.hw, > + [CLK_PLL_AUDIO_4X] = &pll_audio_4x_clk.hw, > + [CLK_PLL_AUDIO_8X] = &pll_audio_8x_clk.hw, > + [CLK_PLL_VIDEO] = &pll_video_clk.common.hw, > + [CLK_PLL_VE] = &pll_ve_clk.common.hw, > + [CLK_PLL_DDR0] = &pll_ddr0_clk.common.hw, > + [CLK_PLL_PERIPH0] = &pll_periph0_clk.common.hw, > + [CLK_PLL_PERIPH0_2X] = &pll_periph0_2x_clk.hw, > + [CLK_PLL_ISP] = &pll_isp_clk.common.hw, > + [CLK_PLL_PERIPH1] = &pll_periph1_clk.common.hw, > + [CLK_PLL_DDR1] = &pll_ddr1_clk.common.hw, > + [CLK_CPU] = &cpu_clk.common.hw, > + [CLK_AXI] = &axi_clk.common.hw, > + [CLK_AHB1] = &ahb1_clk.common.hw, > + [CLK_APB1] = &apb1_clk.common.hw, > + [CLK_APB2] = &apb2_clk.common.hw, > + [CLK_AHB2] = &ahb2_clk.common.hw, > + [CLK_BUS_CE] = &bus_ce_clk.common.hw, > + [CLK_BUS_DMA] = &bus_dma_clk.common.hw, > + [CLK_BUS_MMC0] = &bus_mmc0_clk.common.hw, > + [CLK_BUS_MMC1] = &bus_mmc1_clk.common.hw, > + [CLK_BUS_MMC2] = &bus_mmc2_clk.common.hw, > + [CLK_BUS_DRAM] = &bus_dram_clk.common.hw, > + [CLK_BUS_EMAC] = &bus_emac_clk.common.hw, > + [CLK_BUS_HSTIMER] = &bus_hstimer_clk.common.hw, > + [CLK_BUS_SPI0] = &bus_spi0_clk.common.hw, > + [CLK_BUS_OTG] = &bus_otg_clk.common.hw, > + [CLK_BUS_EHCI0] = &bus_ehci0_clk.common.hw, > + [CLK_BUS_OHCI0] = &bus_ohci0_clk.common.hw, > + [CLK_BUS_VE] = &bus_ve_clk.common.hw, > + [CLK_BUS_TCON0] = &bus_tcon0_clk.common.hw, > + [CLK_BUS_CSI] = &bus_csi_clk.common.hw, > + [CLK_BUS_DE] = &bus_de_clk.common.hw, > + [CLK_BUS_CODEC] = &bus_codec_clk.common.hw, > + [CLK_BUS_PIO] = &bus_pio_clk.common.hw, > + [CLK_BUS_I2S0] = &bus_i2s0_clk.common.hw, > + [CLK_BUS_I2C0] = &bus_i2c0_clk.common.hw, > + [CLK_BUS_I2C1] = &bus_i2c1_clk.common.hw, > + [CLK_BUS_UART0] = &bus_uart0_clk.common.hw, > + [CLK_BUS_UART1] = &bus_uart1_clk.common.hw, > + [CLK_BUS_UART2] = &bus_uart2_clk.common.hw, > + [CLK_BUS_EPHY] = &bus_ephy_clk.common.hw, > + [CLK_BUS_DBG] = &bus_dbg_clk.common.hw, > + [CLK_MMC0] = &mmc0_clk.common.hw, > + [CLK_MMC0_SAMPLE] = &mmc0_sample_clk.common.hw, > + [CLK_MMC0_OUTPUT] = &mmc0_output_clk.common.hw, > + [CLK_MMC1] = &mmc1_clk.common.hw, > + [CLK_MMC1_SAMPLE] = &mmc1_sample_clk.common.hw, > + [CLK_MMC1_OUTPUT] = &mmc1_output_clk.common.hw, > + [CLK_CE] = &ce_clk.common.hw, > + [CLK_SPI0] = &spi0_clk.common.hw, > + [CLK_I2S0] = &i2s0_clk.common.hw, > + [CLK_USB_PHY0] = &usb_phy0_clk.common.hw, > + [CLK_USB_OHCI0] = &usb_ohci0_clk.common.hw, > + [CLK_DRAM] = &dram_clk.common.hw, > + [CLK_DRAM_VE] = &dram_ve_clk.common.hw, > + [CLK_DRAM_CSI] = &dram_csi_clk.common.hw, > + [CLK_DRAM_EHCI] = &dram_ehci_clk.common.hw, > + [CLK_DRAM_OHCI] = &dram_ohci_clk.common.hw, > + [CLK_DE] = &de_clk.common.hw, > + [CLK_TCON0] = &tcon_clk.common.hw, > + [CLK_CSI_MISC] = &csi_misc_clk.common.hw, > + [CLK_CSI0_MCLK] = &csi0_mclk_clk.common.hw, > + [CLK_CSI1_SCLK] = &csi1_sclk_clk.common.hw, > + [CLK_CSI1_MCLK] = &csi1_mclk_clk.common.hw, > + [CLK_VE] = &ve_clk.common.hw, > + [CLK_AC_DIG] = &ac_dig_clk.common.hw, > + [CLK_AVS] = &avs_clk.common.hw, > + [CLK_MBUS] = &mbus_clk.common.hw, > + [CLK_MIPI_CSI] = &mipi_csi_clk.common.hw, > + }, > + .num = CLK_NUMBER, > +}; > + > static struct ccu_reset_map sun8i_v3s_ccu_resets[] = { > [RST_USB_PHY0] = { 0x0cc, BIT(0) }, > > @@ -569,6 +729,42 @@ static struct ccu_reset_map sun8i_v3s_ccu_resets[] = { > [RST_BUS_UART2] = { 0x2d8, BIT(18) }, > }; > > +static struct ccu_reset_map sun8i_v3_ccu_resets[] = { > + [RST_USB_PHY0] = { 0x0cc, BIT(0) }, > + > + [RST_MBUS] = { 0x0fc, BIT(31) }, > + > + [RST_BUS_CE] = { 0x2c0, BIT(5) }, > + [RST_BUS_DMA] = { 0x2c0, BIT(6) }, > + [RST_BUS_MMC0] = { 0x2c0, BIT(8) }, > + [RST_BUS_MMC1] = { 0x2c0, BIT(9) }, > + [RST_BUS_MMC2] = { 0x2c0, BIT(10) }, > + [RST_BUS_DRAM] = { 0x2c0, BIT(14) }, > + [RST_BUS_EMAC] = { 0x2c0, BIT(17) }, > + [RST_BUS_HSTIMER] = { 0x2c0, BIT(19) }, > + [RST_BUS_SPI0] = { 0x2c0, BIT(20) }, > + [RST_BUS_OTG] = { 0x2c0, BIT(24) }, > + [RST_BUS_EHCI0] = { 0x2c0, BIT(26) }, > + [RST_BUS_OHCI0] = { 0x2c0, BIT(29) }, > + > + [RST_BUS_VE] = { 0x2c4, BIT(0) }, > + [RST_BUS_TCON0] = { 0x2c4, BIT(4) }, > + [RST_BUS_CSI] = { 0x2c4, BIT(8) }, > + [RST_BUS_DE] = { 0x2c4, BIT(12) }, > + [RST_BUS_DBG] = { 0x2c4, BIT(31) }, > + > + [RST_BUS_EPHY] = { 0x2c8, BIT(2) }, > + > + [RST_BUS_CODEC] = { 0x2d0, BIT(0) }, > + [RST_BUS_I2S0] = { 0x2d0, BIT(12) }, > + > + [RST_BUS_I2C0] = { 0x2d8, BIT(0) }, > + [RST_BUS_I2C1] = { 0x2d8, BIT(1) }, > + [RST_BUS_UART0] = { 0x2d8, BIT(16) }, > + [RST_BUS_UART1] = { 0x2d8, BIT(17) }, > + [RST_BUS_UART2] = { 0x2d8, BIT(18) }, > +}; > + > static const struct sunxi_ccu_desc sun8i_v3s_ccu_desc = { > .ccu_clks = sun8i_v3s_ccu_clks, > .num_ccu_clks = ARRAY_SIZE(sun8i_v3s_ccu_clks), > @@ -579,7 +775,18 @@ static const struct sunxi_ccu_desc sun8i_v3s_ccu_desc = { > .num_resets = ARRAY_SIZE(sun8i_v3s_ccu_resets), > }; > > -static void __init sun8i_v3s_ccu_setup(struct device_node *node) > +static const struct sunxi_ccu_desc sun8i_v3_ccu_desc = { > + .ccu_clks = sun8i_v3_ccu_clks, > + .num_ccu_clks = ARRAY_SIZE(sun8i_v3_ccu_clks), > + > + .hw_clks = &sun8i_v3_hw_clks, > + > + .resets = sun8i_v3_ccu_resets, > + .num_resets = ARRAY_SIZE(sun8i_v3_ccu_resets), > +}; > + > +static void __init sun8i_v3_v3s_ccu_init(struct device_node *node, > + const struct sunxi_ccu_desc *ccu_desc) > { > void __iomem *reg; > u32 val; > @@ -595,7 +802,21 @@ static void __init sun8i_v3s_ccu_setup(struct device_node *node) > val &= ~GENMASK(19, 16); > writel(val | (3 << 16), reg + SUN8I_V3S_PLL_AUDIO_REG); > > - sunxi_ccu_probe(node, reg, &sun8i_v3s_ccu_desc); > + sunxi_ccu_probe(node, reg, ccu_desc); > +} > + > +static void __init sun8i_v3s_ccu_setup(struct device_node *node) > +{ > + sun8i_v3_v3s_ccu_init(node, &sun8i_v3s_ccu_desc); > +} > + > +static void __init sun8i_v3_ccu_setup(struct device_node *node) > +{ > + sun8i_v3_v3s_ccu_init(node, &sun8i_v3_ccu_desc); > } > + > CLK_OF_DECLARE(sun8i_v3s_ccu, "allwinner,sun8i-v3s-ccu", > sun8i_v3s_ccu_setup); > + > +CLK_OF_DECLARE(sun8i_v3_ccu, "allwinner,sun8i-v3-ccu", > + sun8i_v3_ccu_setup); > diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h > index a091b7217dfd..578485d85cd2 100644 > --- a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h > +++ b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h > @@ -60,6 +60,6 @@ > > #define CLK_PLL_DDR1 74 > > -#define CLK_NUMBER (CLK_PLL_DDR1 + 1) > +#define CLK_NUMBER (CLK_I2S0 + 1) > > #endif /* _CCU_SUN8I_H3_H_ */ > diff --git a/include/dt-bindings/clock/sun8i-v3s-ccu.h b/include/dt-bindings/clock/sun8i-v3s-ccu.h > index c0d5d5599c87..014ac6123d17 100644 > --- a/include/dt-bindings/clock/sun8i-v3s-ccu.h > +++ b/include/dt-bindings/clock/sun8i-v3s-ccu.h > @@ -104,4 +104,8 @@ > > #define CLK_MIPI_CSI 73 > > +/* Clocks not available on V3s */ Perhaps reword as 'Clocks only on V3' > +#define CLK_BUS_I2S0 75 > +#define CLK_I2S0 76 > + > #endif /* _DT_BINDINGS_CLK_SUN8I_V3S_H_ */ > diff --git a/include/dt-bindings/reset/sun8i-v3s-ccu.h b/include/dt-bindings/reset/sun8i-v3s-ccu.h > index b58ef21a2e18..b6790173afd6 100644 > --- a/include/dt-bindings/reset/sun8i-v3s-ccu.h > +++ b/include/dt-bindings/reset/sun8i-v3s-ccu.h > @@ -75,4 +75,7 @@ > #define RST_BUS_UART1 50 > #define RST_BUS_UART2 51 > > +/* Reset lines not available on V3s */ > +#define RST_BUS_I2S0 52 > + > #endif /* _DT_BINDINGS_RST_SUN8I_H3_H_ */ > -- > 2.18.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel