From: Thierry Reding <thierry.reding@gmail.com> To: Vinod Koul <vkoul@kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kishon Vijay Abraham I <kishon@ti.com>, Mathias Nyman <mathias.nyman@intel.com>, JC Kuo <jckuo@nvidia.com>, Jon Hunter <jonathanh@nvidia.com>, linux-tegra@vger.kernel.org, linux-phy@lists.infradead.org, linux-usb@vger.kernel.org Subject: [PATCH v8 07/13] soc/tegra: pmc: Provide USB sleepwalk register map Date: Thu, 25 Mar 2021 17:40:51 +0100 [thread overview] Message-ID: <20210325164057.793954-8-thierry.reding@gmail.com> (raw) In-Reply-To: <20210325164057.793954-1-thierry.reding@gmail.com> From: JC Kuo <jckuo@nvidia.com> This commit implements a register map which grants USB (UTMI and HSIC) sleepwalk registers access to USB PHY drivers. The USB sleepwalk logic is in PMC hardware block but USB PHY drivers have the best knowledge of proper programming sequence. Signed-off-by: JC Kuo <jckuo@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> --- drivers/soc/tegra/pmc.c | 94 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index df9a5ca8c99c..a619a23f9592 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -43,6 +43,7 @@ #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/spinlock.h> +#include <linux/regmap.h> #include <soc/tegra/common.h> #include <soc/tegra/fuse.h> @@ -102,6 +103,9 @@ #define PMC_PWR_DET_VALUE 0xe4 +#define PMC_USB_DEBOUNCE_DEL 0xec +#define PMC_USB_AO 0xf0 + #define PMC_SCRATCH41 0x140 #define PMC_WAKE2_MASK 0x160 @@ -133,6 +137,13 @@ #define IO_DPD2_STATUS 0x1c4 #define SEL_DPD_TIM 0x1c8 +#define PMC_UTMIP_UHSIC_TRIGGERS 0x1ec +#define PMC_UTMIP_UHSIC_SAVED_STATE 0x1f0 + +#define PMC_UTMIP_TERM_PAD_CFG 0x1f8 +#define PMC_UTMIP_UHSIC_SLEEP_CFG 0x1fc +#define PMC_UTMIP_UHSIC_FAKE 0x218 + #define PMC_SCRATCH54 0x258 #define PMC_SCRATCH54_DATA_SHIFT 8 #define PMC_SCRATCH54_ADDR_SHIFT 0 @@ -145,8 +156,18 @@ #define PMC_SCRATCH55_CHECKSUM_SHIFT 16 #define PMC_SCRATCH55_I2CSLV1_SHIFT 0 +#define PMC_UTMIP_UHSIC_LINE_WAKEUP 0x26c + +#define PMC_UTMIP_BIAS_MASTER_CNTRL 0x270 +#define PMC_UTMIP_MASTER_CONFIG 0x274 +#define PMC_UTMIP_UHSIC2_TRIGGERS 0x27c +#define PMC_UTMIP_MASTER2_CONFIG 0x29c + #define GPU_RG_CNTRL 0x2d4 +#define PMC_UTMIP_PAD_CFG0 0x4c0 +#define PMC_UTMIP_UHSIC_SLEEP_CFG1 0x4d0 +#define PMC_UTMIP_SLEEPWALK_P3 0x4e0 /* Tegra186 and later */ #define WAKE_AOWAKE_CNTRL(x) (0x000 + ((x) << 2)) #define WAKE_AOWAKE_CNTRL_LEVEL (1 << 3) @@ -334,6 +355,7 @@ struct tegra_pmc_soc { const struct pmc_clk_init_data *pmc_clks_data; unsigned int num_pmc_clks; bool has_blink_output; + bool has_usb_sleepwalk; }; /** @@ -2443,6 +2465,67 @@ static void tegra_pmc_clock_register(struct tegra_pmc *pmc, err); } +static const struct regmap_range pmc_usb_sleepwalk_ranges[] = { + regmap_reg_range(PMC_USB_DEBOUNCE_DEL, PMC_USB_AO), + regmap_reg_range(PMC_UTMIP_UHSIC_TRIGGERS, PMC_UTMIP_UHSIC_SAVED_STATE), + regmap_reg_range(PMC_UTMIP_TERM_PAD_CFG, PMC_UTMIP_UHSIC_FAKE), + regmap_reg_range(PMC_UTMIP_UHSIC_LINE_WAKEUP, PMC_UTMIP_UHSIC_LINE_WAKEUP), + regmap_reg_range(PMC_UTMIP_BIAS_MASTER_CNTRL, PMC_UTMIP_MASTER_CONFIG), + regmap_reg_range(PMC_UTMIP_UHSIC2_TRIGGERS, PMC_UTMIP_MASTER2_CONFIG), + regmap_reg_range(PMC_UTMIP_PAD_CFG0, PMC_UTMIP_UHSIC_SLEEP_CFG1), + regmap_reg_range(PMC_UTMIP_SLEEPWALK_P3, PMC_UTMIP_SLEEPWALK_P3), +}; + +static const struct regmap_access_table pmc_usb_sleepwalk_table = { + .yes_ranges = pmc_usb_sleepwalk_ranges, + .n_yes_ranges = ARRAY_SIZE(pmc_usb_sleepwalk_ranges), +}; + +static int tegra_pmc_regmap_readl(void *context, unsigned int offset, unsigned int *value) +{ + struct tegra_pmc *pmc = context; + + *value = tegra_pmc_readl(pmc, offset); + return 0; +} + +static int tegra_pmc_regmap_writel(void *context, unsigned int offset, unsigned int value) +{ + struct tegra_pmc *pmc = context; + + tegra_pmc_writel(pmc, value, offset); + return 0; +} + +static const struct regmap_config usb_sleepwalk_regmap_config = { + .name = "usb_sleepwalk", + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .fast_io = true, + .rd_table = &pmc_usb_sleepwalk_table, + .wr_table = &pmc_usb_sleepwalk_table, + .reg_read = tegra_pmc_regmap_readl, + .reg_write = tegra_pmc_regmap_writel, +}; + +static int tegra_pmc_regmap_init(struct tegra_pmc *pmc) +{ + struct regmap *regmap; + int err; + + if (pmc->soc->has_usb_sleepwalk) { + regmap = devm_regmap_init(pmc->dev, NULL, pmc, &usb_sleepwalk_regmap_config); + if (IS_ERR(regmap)) { + err = PTR_ERR(regmap); + dev_err(pmc->dev, "failed to allocate register map (%d)\n", err); + return err; + } + } + + return 0; +} + static int tegra_pmc_probe(struct platform_device *pdev) { void __iomem *base; @@ -2548,6 +2631,10 @@ static int tegra_pmc_probe(struct platform_device *pdev) if (err) goto cleanup_restart_handler; + err = tegra_pmc_regmap_init(pmc); + if (err < 0) + goto cleanup_restart_handler; + err = tegra_powergate_init(pmc, pdev->dev.of_node); if (err < 0) goto cleanup_powergates; @@ -2706,6 +2793,7 @@ static const struct tegra_pmc_soc tegra20_pmc_soc = { .pmc_clks_data = NULL, .num_pmc_clks = 0, .has_blink_output = true, + .has_usb_sleepwalk = false, }; static const char * const tegra30_powergates[] = { @@ -2764,6 +2852,7 @@ static const struct tegra_pmc_soc tegra30_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = false, }; static const char * const tegra114_powergates[] = { @@ -2818,6 +2907,7 @@ static const struct tegra_pmc_soc tegra114_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = false, }; static const char * const tegra124_powergates[] = { @@ -2932,6 +3022,7 @@ static const struct tegra_pmc_soc tegra124_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = true, }; static const char * const tegra210_powergates[] = { @@ -3059,6 +3150,7 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = true, }; #define TEGRA186_IO_PAD_TABLE(_pad) \ @@ -3214,6 +3306,7 @@ static const struct tegra_pmc_soc tegra186_pmc_soc = { .pmc_clks_data = NULL, .num_pmc_clks = 0, .has_blink_output = false, + .has_usb_sleepwalk = false, }; #define TEGRA194_IO_PAD_TABLE(_pad) \ @@ -3347,6 +3440,7 @@ static const struct tegra_pmc_soc tegra194_pmc_soc = { .pmc_clks_data = NULL, .num_pmc_clks = 0, .has_blink_output = false, + .has_usb_sleepwalk = false, }; static const struct tegra_pmc_regs tegra234_pmc_regs = { -- 2.30.2
WARNING: multiple messages have this Message-ID (diff)
From: Thierry Reding <thierry.reding@gmail.com> To: Vinod Koul <vkoul@kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kishon Vijay Abraham I <kishon@ti.com>, Mathias Nyman <mathias.nyman@intel.com>, JC Kuo <jckuo@nvidia.com>, Jon Hunter <jonathanh@nvidia.com>, linux-tegra@vger.kernel.org, linux-phy@lists.infradead.org, linux-usb@vger.kernel.org Subject: [PATCH v8 07/13] soc/tegra: pmc: Provide USB sleepwalk register map Date: Thu, 25 Mar 2021 17:40:51 +0100 [thread overview] Message-ID: <20210325164057.793954-8-thierry.reding@gmail.com> (raw) In-Reply-To: <20210325164057.793954-1-thierry.reding@gmail.com> From: JC Kuo <jckuo@nvidia.com> This commit implements a register map which grants USB (UTMI and HSIC) sleepwalk registers access to USB PHY drivers. The USB sleepwalk logic is in PMC hardware block but USB PHY drivers have the best knowledge of proper programming sequence. Signed-off-by: JC Kuo <jckuo@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> --- drivers/soc/tegra/pmc.c | 94 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index df9a5ca8c99c..a619a23f9592 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -43,6 +43,7 @@ #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/spinlock.h> +#include <linux/regmap.h> #include <soc/tegra/common.h> #include <soc/tegra/fuse.h> @@ -102,6 +103,9 @@ #define PMC_PWR_DET_VALUE 0xe4 +#define PMC_USB_DEBOUNCE_DEL 0xec +#define PMC_USB_AO 0xf0 + #define PMC_SCRATCH41 0x140 #define PMC_WAKE2_MASK 0x160 @@ -133,6 +137,13 @@ #define IO_DPD2_STATUS 0x1c4 #define SEL_DPD_TIM 0x1c8 +#define PMC_UTMIP_UHSIC_TRIGGERS 0x1ec +#define PMC_UTMIP_UHSIC_SAVED_STATE 0x1f0 + +#define PMC_UTMIP_TERM_PAD_CFG 0x1f8 +#define PMC_UTMIP_UHSIC_SLEEP_CFG 0x1fc +#define PMC_UTMIP_UHSIC_FAKE 0x218 + #define PMC_SCRATCH54 0x258 #define PMC_SCRATCH54_DATA_SHIFT 8 #define PMC_SCRATCH54_ADDR_SHIFT 0 @@ -145,8 +156,18 @@ #define PMC_SCRATCH55_CHECKSUM_SHIFT 16 #define PMC_SCRATCH55_I2CSLV1_SHIFT 0 +#define PMC_UTMIP_UHSIC_LINE_WAKEUP 0x26c + +#define PMC_UTMIP_BIAS_MASTER_CNTRL 0x270 +#define PMC_UTMIP_MASTER_CONFIG 0x274 +#define PMC_UTMIP_UHSIC2_TRIGGERS 0x27c +#define PMC_UTMIP_MASTER2_CONFIG 0x29c + #define GPU_RG_CNTRL 0x2d4 +#define PMC_UTMIP_PAD_CFG0 0x4c0 +#define PMC_UTMIP_UHSIC_SLEEP_CFG1 0x4d0 +#define PMC_UTMIP_SLEEPWALK_P3 0x4e0 /* Tegra186 and later */ #define WAKE_AOWAKE_CNTRL(x) (0x000 + ((x) << 2)) #define WAKE_AOWAKE_CNTRL_LEVEL (1 << 3) @@ -334,6 +355,7 @@ struct tegra_pmc_soc { const struct pmc_clk_init_data *pmc_clks_data; unsigned int num_pmc_clks; bool has_blink_output; + bool has_usb_sleepwalk; }; /** @@ -2443,6 +2465,67 @@ static void tegra_pmc_clock_register(struct tegra_pmc *pmc, err); } +static const struct regmap_range pmc_usb_sleepwalk_ranges[] = { + regmap_reg_range(PMC_USB_DEBOUNCE_DEL, PMC_USB_AO), + regmap_reg_range(PMC_UTMIP_UHSIC_TRIGGERS, PMC_UTMIP_UHSIC_SAVED_STATE), + regmap_reg_range(PMC_UTMIP_TERM_PAD_CFG, PMC_UTMIP_UHSIC_FAKE), + regmap_reg_range(PMC_UTMIP_UHSIC_LINE_WAKEUP, PMC_UTMIP_UHSIC_LINE_WAKEUP), + regmap_reg_range(PMC_UTMIP_BIAS_MASTER_CNTRL, PMC_UTMIP_MASTER_CONFIG), + regmap_reg_range(PMC_UTMIP_UHSIC2_TRIGGERS, PMC_UTMIP_MASTER2_CONFIG), + regmap_reg_range(PMC_UTMIP_PAD_CFG0, PMC_UTMIP_UHSIC_SLEEP_CFG1), + regmap_reg_range(PMC_UTMIP_SLEEPWALK_P3, PMC_UTMIP_SLEEPWALK_P3), +}; + +static const struct regmap_access_table pmc_usb_sleepwalk_table = { + .yes_ranges = pmc_usb_sleepwalk_ranges, + .n_yes_ranges = ARRAY_SIZE(pmc_usb_sleepwalk_ranges), +}; + +static int tegra_pmc_regmap_readl(void *context, unsigned int offset, unsigned int *value) +{ + struct tegra_pmc *pmc = context; + + *value = tegra_pmc_readl(pmc, offset); + return 0; +} + +static int tegra_pmc_regmap_writel(void *context, unsigned int offset, unsigned int value) +{ + struct tegra_pmc *pmc = context; + + tegra_pmc_writel(pmc, value, offset); + return 0; +} + +static const struct regmap_config usb_sleepwalk_regmap_config = { + .name = "usb_sleepwalk", + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .fast_io = true, + .rd_table = &pmc_usb_sleepwalk_table, + .wr_table = &pmc_usb_sleepwalk_table, + .reg_read = tegra_pmc_regmap_readl, + .reg_write = tegra_pmc_regmap_writel, +}; + +static int tegra_pmc_regmap_init(struct tegra_pmc *pmc) +{ + struct regmap *regmap; + int err; + + if (pmc->soc->has_usb_sleepwalk) { + regmap = devm_regmap_init(pmc->dev, NULL, pmc, &usb_sleepwalk_regmap_config); + if (IS_ERR(regmap)) { + err = PTR_ERR(regmap); + dev_err(pmc->dev, "failed to allocate register map (%d)\n", err); + return err; + } + } + + return 0; +} + static int tegra_pmc_probe(struct platform_device *pdev) { void __iomem *base; @@ -2548,6 +2631,10 @@ static int tegra_pmc_probe(struct platform_device *pdev) if (err) goto cleanup_restart_handler; + err = tegra_pmc_regmap_init(pmc); + if (err < 0) + goto cleanup_restart_handler; + err = tegra_powergate_init(pmc, pdev->dev.of_node); if (err < 0) goto cleanup_powergates; @@ -2706,6 +2793,7 @@ static const struct tegra_pmc_soc tegra20_pmc_soc = { .pmc_clks_data = NULL, .num_pmc_clks = 0, .has_blink_output = true, + .has_usb_sleepwalk = false, }; static const char * const tegra30_powergates[] = { @@ -2764,6 +2852,7 @@ static const struct tegra_pmc_soc tegra30_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = false, }; static const char * const tegra114_powergates[] = { @@ -2818,6 +2907,7 @@ static const struct tegra_pmc_soc tegra114_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = false, }; static const char * const tegra124_powergates[] = { @@ -2932,6 +3022,7 @@ static const struct tegra_pmc_soc tegra124_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = true, }; static const char * const tegra210_powergates[] = { @@ -3059,6 +3150,7 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = true, }; #define TEGRA186_IO_PAD_TABLE(_pad) \ @@ -3214,6 +3306,7 @@ static const struct tegra_pmc_soc tegra186_pmc_soc = { .pmc_clks_data = NULL, .num_pmc_clks = 0, .has_blink_output = false, + .has_usb_sleepwalk = false, }; #define TEGRA194_IO_PAD_TABLE(_pad) \ @@ -3347,6 +3440,7 @@ static const struct tegra_pmc_soc tegra194_pmc_soc = { .pmc_clks_data = NULL, .num_pmc_clks = 0, .has_blink_output = false, + .has_usb_sleepwalk = false, }; static const struct tegra_pmc_regs tegra234_pmc_regs = { -- 2.30.2 -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy
next prev parent reply other threads:[~2021-03-25 16:41 UTC|newest] Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-25 16:40 [PATCH v8 00/13] Tegra XHCI controller ELPG support Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-03-25 16:40 ` [PATCH v8 01/13] clk: tegra: Add PLLE HW power sequencer control Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-03-25 16:40 ` [PATCH v8 02/13] clk: tegra: Don't enable PLLE HW sequencer at init Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-03-25 16:40 ` [PATCH v8 03/13] phy: tegra: xusb: Move usb3 port init for Tegra210 Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-03-30 14:12 ` Vinod Koul 2021-03-30 14:12 ` Vinod Koul 2021-03-31 16:32 ` Thierry Reding 2021-03-31 16:32 ` Thierry Reding 2021-04-01 5:15 ` Vinod Koul 2021-04-01 5:15 ` Vinod Koul 2021-03-25 16:40 ` [PATCH v8 04/13] phy: tegra: xusb: Rearrange UPHY init on Tegra210 Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-03-30 14:20 ` Vinod Koul 2021-03-30 14:20 ` Vinod Koul 2021-03-25 16:40 ` [PATCH v8 05/13] phy: tegra: xusb: Add Tegra210 lane_iddq operation Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-03-30 14:21 ` Vinod Koul 2021-03-30 14:21 ` Vinod Koul 2021-03-31 16:36 ` Thierry Reding 2021-03-31 16:36 ` Thierry Reding 2021-03-25 16:40 ` [PATCH v8 06/13] phy: tegra: xusb: Add sleepwalk and suspend/resume Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-03-30 14:23 ` Vinod Koul 2021-03-30 14:23 ` Vinod Koul 2021-03-31 16:38 ` Thierry Reding 2021-03-31 16:38 ` Thierry Reding 2021-03-31 16:45 ` Thierry Reding 2021-03-31 16:45 ` Thierry Reding 2021-03-31 16:52 ` Thierry Reding 2021-03-31 16:52 ` Thierry Reding 2021-03-25 16:40 ` Thierry Reding [this message] 2021-03-25 16:40 ` [PATCH v8 07/13] soc/tegra: pmc: Provide USB sleepwalk register map Thierry Reding 2021-03-25 16:40 ` [PATCH v8 08/13] dt-bindings: phy: tegra-xusb: Add nvidia,pmc prop Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-03-25 16:40 ` [PATCH v8 09/13] phy: tegra: xusb: Add wake/sleepwalk for Tegra210 Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-03-25 20:26 ` Nathan Chancellor 2021-03-25 20:26 ` Nathan Chancellor 2021-03-26 12:44 ` Thierry Reding 2021-03-26 12:44 ` Thierry Reding 2021-04-01 6:45 ` Vinod Koul 2021-04-01 6:45 ` Vinod Koul 2021-04-01 10:44 ` Thierry Reding 2021-04-01 10:44 ` Thierry Reding 2021-04-01 11:05 ` [PATCH v9 " Thierry Reding 2021-04-01 11:05 ` Thierry Reding 2021-04-06 5:01 ` Vinod Koul 2021-04-06 5:01 ` Vinod Koul 2021-04-06 13:58 ` Thierry Reding 2021-04-06 13:58 ` Thierry Reding 2021-04-11 14:30 ` Vinod Koul 2021-04-11 14:30 ` Vinod Koul 2021-03-25 16:40 ` [PATCH v8 10/13] phy: tegra: xusb: Tegra210 host mode VBUS control Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-04-01 6:45 ` Vinod Koul 2021-04-01 6:45 ` Vinod Koul 2021-03-25 16:40 ` [PATCH v8 11/13] phy: tegra: xusb: Add wake/sleepwalk for Tegra186 Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-04-01 6:49 ` Vinod Koul 2021-04-01 6:49 ` Vinod Koul 2021-04-01 11:00 ` Thierry Reding 2021-04-01 11:00 ` Thierry Reding 2021-03-25 16:40 ` [PATCH v8 12/13] usb: host: xhci-tegra: Unlink power domain devices Thierry Reding 2021-03-25 16:40 ` Thierry Reding 2021-03-25 16:40 ` [PATCH v8 13/13] xhci: tegra: Enable ELPG for runtime/system PM Thierry Reding 2021-03-25 16:40 ` Thierry Reding
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