diff options
author | Arnd Bergmann <arnd@arndb.de> | 2017-12-21 18:11:41 +0100 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2017-12-21 18:11:41 +0100 |
commit | 11c9dff045484f5945af9ca786f9d2539320c0d4 (patch) | |
tree | 12d9e60184c805e5d0cd6e067b2355492c9130a3 /drivers/soc | |
parent | a3dc838d7aa045c5b601f88ea1eab7b788b58e64 (diff) | |
parent | fdac5f4d4857d488fcd77308fec95b44196fdfb1 (diff) | |
download | linux-11c9dff045484f5945af9ca786f9d2539320c0d4.tar.bz2 |
Merge tag 'v4.15-next-soc' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into next/soc
Pull "arm: Updates for soc driver for v4.15-next" from Matthias Brugger:
- change kconfig entry for armv7 SoCs to be more generic
- add support for mt2701 scpsys driver
binding documentation
extend driver to allow the bus protection to overwrite the register
* tag 'v4.15-next-soc' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
soc: mediatek: add MT2712 scpsys support
soc: mediatek: add dependent clock jpgdec/audio for scpsys
soc: mediatek: extend bus protection API
dt-bindings: soc: add MT2712 power dt-bindings
ARM: mediatek: use more generic prompts for SoCs with ARMv7
Diffstat (limited to 'drivers/soc')
-rw-r--r-- | drivers/soc/mediatek/mtk-infracfg.c | 26 | ||||
-rw-r--r-- | drivers/soc/mediatek/mtk-scpsys.c | 140 |
2 files changed, 147 insertions, 19 deletions
diff --git a/drivers/soc/mediatek/mtk-infracfg.c b/drivers/soc/mediatek/mtk-infracfg.c index dba3055a9493..8c310de01e93 100644 --- a/drivers/soc/mediatek/mtk-infracfg.c +++ b/drivers/soc/mediatek/mtk-infracfg.c @@ -19,23 +19,33 @@ #define INFRA_TOPAXI_PROTECTEN 0x0220 #define INFRA_TOPAXI_PROTECTSTA1 0x0228 +#define INFRA_TOPAXI_PROTECTEN_SET 0x0260 +#define INFRA_TOPAXI_PROTECTEN_CLR 0x0264 /** * mtk_infracfg_set_bus_protection - enable bus protection * @regmap: The infracfg regmap * @mask: The mask containing the protection bits to be enabled. + * @reg_update: The boolean flag determines to set the protection bits + * by regmap_update_bits with enable register(PROTECTEN) or + * by regmap_write with set register(PROTECTEN_SET). * * This function enables the bus protection bits for disabled power * domains so that the system does not hang when some unit accesses the * bus while in power down. */ -int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask) +int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask, + bool reg_update) { unsigned long expired; u32 val; int ret; - regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, mask); + if (reg_update) + regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, + mask); + else + regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_SET, mask); expired = jiffies + HZ; @@ -59,16 +69,24 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask) * mtk_infracfg_clear_bus_protection - disable bus protection * @regmap: The infracfg regmap * @mask: The mask containing the protection bits to be disabled. + * @reg_update: The boolean flag determines to clear the protection bits + * by regmap_update_bits with enable register(PROTECTEN) or + * by regmap_write with clear register(PROTECTEN_CLR). * * This function disables the bus protection bits previously enabled with * mtk_infracfg_set_bus_protection. */ -int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask) + +int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask, + bool reg_update) { unsigned long expired; int ret; - regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, 0); + if (reg_update) + regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, 0); + else + regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_CLR, mask); expired = jiffies + HZ; diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c index e570b6af2e6f..435ce5ec648a 100644 --- a/drivers/soc/mediatek/mtk-scpsys.c +++ b/drivers/soc/mediatek/mtk-scpsys.c @@ -21,6 +21,7 @@ #include <linux/soc/mediatek/infracfg.h> #include <dt-bindings/power/mt2701-power.h> +#include <dt-bindings/power/mt2712-power.h> #include <dt-bindings/power/mt6797-power.h> #include <dt-bindings/power/mt7622-power.h> #include <dt-bindings/power/mt8173-power.h> @@ -32,7 +33,7 @@ #define SPM_DIS_PWR_CON 0x023c #define SPM_CONN_PWR_CON 0x0280 #define SPM_VEN2_PWR_CON 0x0298 -#define SPM_AUDIO_PWR_CON 0x029c /* MT8173 */ +#define SPM_AUDIO_PWR_CON 0x029c /* MT8173, MT2712 */ #define SPM_BDP_PWR_CON 0x029c /* MT2701 */ #define SPM_ETH_PWR_CON 0x02a0 #define SPM_HIF_PWR_CON 0x02a4 @@ -40,12 +41,12 @@ #define SPM_MFG_2D_PWR_CON 0x02c0 #define SPM_MFG_ASYNC_PWR_CON 0x02c4 #define SPM_USB_PWR_CON 0x02cc +#define SPM_USB2_PWR_CON 0x02d4 /* MT2712 */ #define SPM_ETHSYS_PWR_CON 0x02e0 /* MT7622 */ #define SPM_HIF0_PWR_CON 0x02e4 /* MT7622 */ #define SPM_HIF1_PWR_CON 0x02e8 /* MT7622 */ #define SPM_WB_PWR_CON 0x02ec /* MT7622 */ - #define SPM_PWR_STATUS 0x060c #define SPM_PWR_STATUS_2ND 0x0610 @@ -64,12 +65,13 @@ #define PWR_STATUS_ETH BIT(15) #define PWR_STATUS_HIF BIT(16) #define PWR_STATUS_IFR_MSC BIT(17) +#define PWR_STATUS_USB2 BIT(19) /* MT2712 */ #define PWR_STATUS_VENC_LT BIT(20) #define PWR_STATUS_VENC BIT(21) -#define PWR_STATUS_MFG_2D BIT(22) -#define PWR_STATUS_MFG_ASYNC BIT(23) -#define PWR_STATUS_AUDIO BIT(24) -#define PWR_STATUS_USB BIT(25) +#define PWR_STATUS_MFG_2D BIT(22) /* MT8173 */ +#define PWR_STATUS_MFG_ASYNC BIT(23) /* MT8173 */ +#define PWR_STATUS_AUDIO BIT(24) /* MT8173, MT2712 */ +#define PWR_STATUS_USB BIT(25) /* MT8173, MT2712 */ #define PWR_STATUS_ETHSYS BIT(24) /* MT7622 */ #define PWR_STATUS_HIF0 BIT(25) /* MT7622 */ #define PWR_STATUS_HIF1 BIT(26) /* MT7622 */ @@ -84,6 +86,8 @@ enum clk_id { CLK_ETHIF, CLK_VDEC, CLK_HIFSEL, + CLK_JPGDEC, + CLK_AUDIO, CLK_MAX, }; @@ -96,10 +100,12 @@ static const char * const clk_names[] = { "ethif", "vdec", "hif_sel", + "jpgdec", + "audio", NULL, }; -#define MAX_CLKS 2 +#define MAX_CLKS 3 struct scp_domain_data { const char *name; @@ -134,6 +140,7 @@ struct scp { void __iomem *base; struct regmap *infracfg; struct scp_ctrl_reg ctrl_reg; + bool bus_prot_reg_update; }; struct scp_subdomain { @@ -147,6 +154,7 @@ struct scp_soc_data { const struct scp_subdomain *subdomains; int num_subdomains; const struct scp_ctrl_reg regs; + bool bus_prot_reg_update; }; static int scpsys_domain_is_on(struct scp_domain *scpd) @@ -254,7 +262,8 @@ static int scpsys_power_on(struct generic_pm_domain *genpd) if (scpd->data->bus_prot_mask) { ret = mtk_infracfg_clear_bus_protection(scp->infracfg, - scpd->data->bus_prot_mask); + scpd->data->bus_prot_mask, + scp->bus_prot_reg_update); if (ret) goto err_pwr_ack; } @@ -289,7 +298,8 @@ static int scpsys_power_off(struct generic_pm_domain *genpd) if (scpd->data->bus_prot_mask) { ret = mtk_infracfg_set_bus_protection(scp->infracfg, - scpd->data->bus_prot_mask); + scpd->data->bus_prot_mask, + scp->bus_prot_reg_update); if (ret) goto out; } @@ -371,7 +381,8 @@ static void init_clks(struct platform_device *pdev, struct clk **clk) static struct scp *init_scp(struct platform_device *pdev, const struct scp_domain_data *scp_domain_data, int num, - const struct scp_ctrl_reg *scp_ctrl_reg) + const struct scp_ctrl_reg *scp_ctrl_reg, + bool bus_prot_reg_update) { struct genpd_onecell_data *pd_data; struct resource *res; @@ -386,6 +397,8 @@ static struct scp *init_scp(struct platform_device *pdev, scp->ctrl_reg.pwr_sta_offs = scp_ctrl_reg->pwr_sta_offs; scp->ctrl_reg.pwr_sta2nd_offs = scp_ctrl_reg->pwr_sta2nd_offs; + scp->bus_prot_reg_update = bus_prot_reg_update; + scp->dev = &pdev->dev; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -581,6 +594,85 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = { }; /* + * MT2712 power domain support + */ +static const struct scp_domain_data scp_domain_data_mt2712[] = { + [MT2712_POWER_DOMAIN_MM] = { + .name = "mm", + .sta_mask = PWR_STATUS_DISP, + .ctl_offs = SPM_DIS_PWR_CON, + .sram_pdn_bits = GENMASK(8, 8), + .sram_pdn_ack_bits = GENMASK(12, 12), + .clk_id = {CLK_MM}, + .active_wakeup = true, + }, + [MT2712_POWER_DOMAIN_VDEC] = { + .name = "vdec", + .sta_mask = PWR_STATUS_VDEC, + .ctl_offs = SPM_VDE_PWR_CON, + .sram_pdn_bits = GENMASK(8, 8), + .sram_pdn_ack_bits = GENMASK(12, 12), + .clk_id = {CLK_MM, CLK_VDEC}, + .active_wakeup = true, + }, + [MT2712_POWER_DOMAIN_VENC] = { + .name = "venc", + .sta_mask = PWR_STATUS_VENC, + .ctl_offs = SPM_VEN_PWR_CON, + .sram_pdn_bits = GENMASK(11, 8), + .sram_pdn_ack_bits = GENMASK(15, 12), + .clk_id = {CLK_MM, CLK_VENC, CLK_JPGDEC}, + .active_wakeup = true, + }, + [MT2712_POWER_DOMAIN_ISP] = { + .name = "isp", + .sta_mask = PWR_STATUS_ISP, + .ctl_offs = SPM_ISP_PWR_CON, + .sram_pdn_bits = GENMASK(11, 8), + .sram_pdn_ack_bits = GENMASK(13, 12), + .clk_id = {CLK_MM}, + .active_wakeup = true, + }, + [MT2712_POWER_DOMAIN_AUDIO] = { + .name = "audio", + .sta_mask = PWR_STATUS_AUDIO, + .ctl_offs = SPM_AUDIO_PWR_CON, + .sram_pdn_bits = GENMASK(11, 8), + .sram_pdn_ack_bits = GENMASK(15, 12), + .clk_id = {CLK_AUDIO}, + .active_wakeup = true, + }, + [MT2712_POWER_DOMAIN_USB] = { + .name = "usb", + .sta_mask = PWR_STATUS_USB, + .ctl_offs = SPM_USB_PWR_CON, + .sram_pdn_bits = GENMASK(10, 8), + .sram_pdn_ack_bits = GENMASK(14, 12), + .clk_id = {CLK_NONE}, + .active_wakeup = true, + }, + [MT2712_POWER_DOMAIN_USB2] = { + .name = "usb2", + .sta_mask = PWR_STATUS_USB2, + .ctl_offs = SPM_USB2_PWR_CON, + .sram_pdn_bits = GENMASK(10, 8), + .sram_pdn_ack_bits = GENMASK(14, 12), + .clk_id = {CLK_NONE}, + .active_wakeup = true, + }, + [MT2712_POWER_DOMAIN_MFG] = { + .name = "mfg", + .sta_mask = PWR_STATUS_MFG, + .ctl_offs = SPM_MFG_PWR_CON, + .sram_pdn_bits = GENMASK(11, 8), + .sram_pdn_ack_bits = GENMASK(19, 16), + .clk_id = {CLK_MFG}, + .bus_prot_mask = BIT(14) | BIT(21) | BIT(23), + .active_wakeup = true, + }, +}; + +/* * MT6797 power domain support */ @@ -806,7 +898,18 @@ static const struct scp_soc_data mt2701_data = { .regs = { .pwr_sta_offs = SPM_PWR_STATUS, .pwr_sta2nd_offs = SPM_PWR_STATUS_2ND - } + }, + .bus_prot_reg_update = true, +}; + +static const struct scp_soc_data mt2712_data = { + .domains = scp_domain_data_mt2712, + .num_domains = ARRAY_SIZE(scp_domain_data_mt2712), + .regs = { + .pwr_sta_offs = SPM_PWR_STATUS, + .pwr_sta2nd_offs = SPM_PWR_STATUS_2ND + }, + .bus_prot_reg_update = false, }; static const struct scp_soc_data mt6797_data = { @@ -817,7 +920,8 @@ static const struct scp_soc_data mt6797_data = { .regs = { .pwr_sta_offs = SPM_PWR_STATUS_MT6797, .pwr_sta2nd_offs = SPM_PWR_STATUS_2ND_MT6797 - } + }, + .bus_prot_reg_update = true, }; static const struct scp_soc_data mt7622_data = { @@ -826,7 +930,8 @@ static const struct scp_soc_data mt7622_data = { .regs = { .pwr_sta_offs = SPM_PWR_STATUS, .pwr_sta2nd_offs = SPM_PWR_STATUS_2ND - } + }, + .bus_prot_reg_update = true, }; static const struct scp_soc_data mt8173_data = { @@ -837,7 +942,8 @@ static const struct scp_soc_data mt8173_data = { .regs = { .pwr_sta_offs = SPM_PWR_STATUS, .pwr_sta2nd_offs = SPM_PWR_STATUS_2ND - } + }, + .bus_prot_reg_update = true, }; /* @@ -849,6 +955,9 @@ static const struct of_device_id of_scpsys_match_tbl[] = { .compatible = "mediatek,mt2701-scpsys", .data = &mt2701_data, }, { + .compatible = "mediatek,mt2712-scpsys", + .data = &mt2712_data, + }, { .compatible = "mediatek,mt6797-scpsys", .data = &mt6797_data, }, { @@ -874,7 +983,8 @@ static int scpsys_probe(struct platform_device *pdev) match = of_match_device(of_scpsys_match_tbl, &pdev->dev); soc = (const struct scp_soc_data *)match->data; - scp = init_scp(pdev, soc->domains, soc->num_domains, &soc->regs); + scp = init_scp(pdev, soc->domains, soc->num_domains, &soc->regs, + soc->bus_prot_reg_update); if (IS_ERR(scp)) return PTR_ERR(scp); |