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Diffstat (limited to 'target/linux/mediatek/patches-4.9/0008-soc-mediatek-Refine-scpsys-to-support-multiple-platf.patch')
-rw-r--r--target/linux/mediatek/patches-4.9/0008-soc-mediatek-Refine-scpsys-to-support-multiple-platf.patch487
1 files changed, 487 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-4.9/0008-soc-mediatek-Refine-scpsys-to-support-multiple-platf.patch b/target/linux/mediatek/patches-4.9/0008-soc-mediatek-Refine-scpsys-to-support-multiple-platf.patch
new file mode 100644
index 0000000000..1d83e9ae5d
--- /dev/null
+++ b/target/linux/mediatek/patches-4.9/0008-soc-mediatek-Refine-scpsys-to-support-multiple-platf.patch
@@ -0,0 +1,487 @@
+From b5a1e520d8039c242b2157b511f684ce464d6e21 Mon Sep 17 00:00:00 2001
+From: James Liao <jamesjj.liao@mediatek.com>
+Date: Thu, 20 Oct 2016 16:56:35 +0800
+Subject: [PATCH 08/57] soc: mediatek: Refine scpsys to support multiple
+ platform
+
+Refine scpsys driver common code to support multiple SoC / platform.
+
+Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
+Reviewed-by: Kevin Hilman <khilman@baylibre.com>
+Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
+---
+ drivers/soc/mediatek/mtk-scpsys.c | 348 +++++++++++++++++++++++---------------
+ 1 file changed, 210 insertions(+), 138 deletions(-)
+
+--- a/drivers/soc/mediatek/mtk-scpsys.c
++++ b/drivers/soc/mediatek/mtk-scpsys.c
+@@ -11,17 +11,15 @@
+ * GNU General Public License for more details.
+ */
+ #include <linux/clk.h>
+-#include <linux/delay.h>
++#include <linux/init.h>
+ #include <linux/io.h>
+-#include <linux/kernel.h>
+ #include <linux/mfd/syscon.h>
+-#include <linux/init.h>
+ #include <linux/of_device.h>
+ #include <linux/platform_device.h>
+ #include <linux/pm_domain.h>
+-#include <linux/regmap.h>
+-#include <linux/soc/mediatek/infracfg.h>
+ #include <linux/regulator/consumer.h>
++#include <linux/soc/mediatek/infracfg.h>
++
+ #include <dt-bindings/power/mt8173-power.h>
+
+ #define SPM_VDE_PWR_CON 0x0210
+@@ -34,6 +32,7 @@
+ #define SPM_MFG_2D_PWR_CON 0x02c0
+ #define SPM_MFG_ASYNC_PWR_CON 0x02c4
+ #define SPM_USB_PWR_CON 0x02cc
++
+ #define SPM_PWR_STATUS 0x060c
+ #define SPM_PWR_STATUS_2ND 0x0610
+
+@@ -55,12 +54,21 @@
+ #define PWR_STATUS_USB BIT(25)
+
+ enum clk_id {
+- MT8173_CLK_NONE,
+- MT8173_CLK_MM,
+- MT8173_CLK_MFG,
+- MT8173_CLK_VENC,
+- MT8173_CLK_VENC_LT,
+- MT8173_CLK_MAX,
++ CLK_NONE,
++ CLK_MM,
++ CLK_MFG,
++ CLK_VENC,
++ CLK_VENC_LT,
++ CLK_MAX,
++};
++
++static const char * const clk_names[] = {
++ NULL,
++ "mm",
++ "mfg",
++ "venc",
++ "venc_lt",
++ NULL,
+ };
+
+ #define MAX_CLKS 2
+@@ -76,98 +84,6 @@ struct scp_domain_data {
+ bool active_wakeup;
+ };
+
+-static const struct scp_domain_data scp_domain_data[] = {
+- [MT8173_POWER_DOMAIN_VDEC] = {
+- .name = "vdec",
+- .sta_mask = PWR_STATUS_VDEC,
+- .ctl_offs = SPM_VDE_PWR_CON,
+- .sram_pdn_bits = GENMASK(11, 8),
+- .sram_pdn_ack_bits = GENMASK(12, 12),
+- .clk_id = {MT8173_CLK_MM},
+- },
+- [MT8173_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 = {MT8173_CLK_MM, MT8173_CLK_VENC},
+- },
+- [MT8173_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 = {MT8173_CLK_MM},
+- },
+- [MT8173_POWER_DOMAIN_MM] = {
+- .name = "mm",
+- .sta_mask = PWR_STATUS_DISP,
+- .ctl_offs = SPM_DIS_PWR_CON,
+- .sram_pdn_bits = GENMASK(11, 8),
+- .sram_pdn_ack_bits = GENMASK(12, 12),
+- .clk_id = {MT8173_CLK_MM},
+- .bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MM_M0 |
+- MT8173_TOP_AXI_PROT_EN_MM_M1,
+- },
+- [MT8173_POWER_DOMAIN_VENC_LT] = {
+- .name = "venc_lt",
+- .sta_mask = PWR_STATUS_VENC_LT,
+- .ctl_offs = SPM_VEN2_PWR_CON,
+- .sram_pdn_bits = GENMASK(11, 8),
+- .sram_pdn_ack_bits = GENMASK(15, 12),
+- .clk_id = {MT8173_CLK_MM, MT8173_CLK_VENC_LT},
+- },
+- [MT8173_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 = {MT8173_CLK_NONE},
+- },
+- [MT8173_POWER_DOMAIN_USB] = {
+- .name = "usb",
+- .sta_mask = PWR_STATUS_USB,
+- .ctl_offs = SPM_USB_PWR_CON,
+- .sram_pdn_bits = GENMASK(11, 8),
+- .sram_pdn_ack_bits = GENMASK(15, 12),
+- .clk_id = {MT8173_CLK_NONE},
+- .active_wakeup = true,
+- },
+- [MT8173_POWER_DOMAIN_MFG_ASYNC] = {
+- .name = "mfg_async",
+- .sta_mask = PWR_STATUS_MFG_ASYNC,
+- .ctl_offs = SPM_MFG_ASYNC_PWR_CON,
+- .sram_pdn_bits = GENMASK(11, 8),
+- .sram_pdn_ack_bits = 0,
+- .clk_id = {MT8173_CLK_MFG},
+- },
+- [MT8173_POWER_DOMAIN_MFG_2D] = {
+- .name = "mfg_2d",
+- .sta_mask = PWR_STATUS_MFG_2D,
+- .ctl_offs = SPM_MFG_2D_PWR_CON,
+- .sram_pdn_bits = GENMASK(11, 8),
+- .sram_pdn_ack_bits = GENMASK(13, 12),
+- .clk_id = {MT8173_CLK_NONE},
+- },
+- [MT8173_POWER_DOMAIN_MFG] = {
+- .name = "mfg",
+- .sta_mask = PWR_STATUS_MFG,
+- .ctl_offs = SPM_MFG_PWR_CON,
+- .sram_pdn_bits = GENMASK(13, 8),
+- .sram_pdn_ack_bits = GENMASK(21, 16),
+- .clk_id = {MT8173_CLK_NONE},
+- .bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MFG_S |
+- MT8173_TOP_AXI_PROT_EN_MFG_M0 |
+- MT8173_TOP_AXI_PROT_EN_MFG_M1 |
+- MT8173_TOP_AXI_PROT_EN_MFG_SNOOP_OUT,
+- },
+-};
+-
+-#define NUM_DOMAINS ARRAY_SIZE(scp_domain_data)
+-
+ struct scp;
+
+ struct scp_domain {
+@@ -179,7 +95,7 @@ struct scp_domain {
+ };
+
+ struct scp {
+- struct scp_domain domains[NUM_DOMAINS];
++ struct scp_domain *domains;
+ struct genpd_onecell_data pd_data;
+ struct device *dev;
+ void __iomem *base;
+@@ -408,57 +324,55 @@ static bool scpsys_active_wakeup(struct
+ return scpd->data->active_wakeup;
+ }
+
+-static int scpsys_probe(struct platform_device *pdev)
++static void init_clks(struct platform_device *pdev, struct clk **clk)
++{
++ int i;
++
++ for (i = CLK_NONE + 1; i < CLK_MAX; i++)
++ clk[i] = devm_clk_get(&pdev->dev, clk_names[i]);
++}
++
++static struct scp *init_scp(struct platform_device *pdev,
++ const struct scp_domain_data *scp_domain_data, int num)
+ {
+ struct genpd_onecell_data *pd_data;
+ struct resource *res;
+- int i, j, ret;
++ int i, j;
+ struct scp *scp;
+- struct clk *clk[MT8173_CLK_MAX];
++ struct clk *clk[CLK_MAX];
+
+ scp = devm_kzalloc(&pdev->dev, sizeof(*scp), GFP_KERNEL);
+ if (!scp)
+- return -ENOMEM;
++ return ERR_PTR(-ENOMEM);
+
+ scp->dev = &pdev->dev;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ scp->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(scp->base))
+- return PTR_ERR(scp->base);
++ return ERR_CAST(scp->base);
++
++ scp->domains = devm_kzalloc(&pdev->dev,
++ sizeof(*scp->domains) * num, GFP_KERNEL);
++ if (!scp->domains)
++ return ERR_PTR(-ENOMEM);
+
+ pd_data = &scp->pd_data;
+
+ pd_data->domains = devm_kzalloc(&pdev->dev,
+- sizeof(*pd_data->domains) * NUM_DOMAINS, GFP_KERNEL);
++ sizeof(*pd_data->domains) * num, GFP_KERNEL);
+ if (!pd_data->domains)
+- return -ENOMEM;
+-
+- clk[MT8173_CLK_MM] = devm_clk_get(&pdev->dev, "mm");
+- if (IS_ERR(clk[MT8173_CLK_MM]))
+- return PTR_ERR(clk[MT8173_CLK_MM]);
+-
+- clk[MT8173_CLK_MFG] = devm_clk_get(&pdev->dev, "mfg");
+- if (IS_ERR(clk[MT8173_CLK_MFG]))
+- return PTR_ERR(clk[MT8173_CLK_MFG]);
+-
+- clk[MT8173_CLK_VENC] = devm_clk_get(&pdev->dev, "venc");
+- if (IS_ERR(clk[MT8173_CLK_VENC]))
+- return PTR_ERR(clk[MT8173_CLK_VENC]);
+-
+- clk[MT8173_CLK_VENC_LT] = devm_clk_get(&pdev->dev, "venc_lt");
+- if (IS_ERR(clk[MT8173_CLK_VENC_LT]))
+- return PTR_ERR(clk[MT8173_CLK_VENC_LT]);
++ return ERR_PTR(-ENOMEM);
+
+ scp->infracfg = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
+ "infracfg");
+ if (IS_ERR(scp->infracfg)) {
+ dev_err(&pdev->dev, "Cannot find infracfg controller: %ld\n",
+ PTR_ERR(scp->infracfg));
+- return PTR_ERR(scp->infracfg);
++ return ERR_CAST(scp->infracfg);
+ }
+
+- for (i = 0; i < NUM_DOMAINS; i++) {
++ for (i = 0; i < num; i++) {
+ struct scp_domain *scpd = &scp->domains[i];
+ const struct scp_domain_data *data = &scp_domain_data[i];
+
+@@ -467,13 +381,15 @@ static int scpsys_probe(struct platform_
+ if (PTR_ERR(scpd->supply) == -ENODEV)
+ scpd->supply = NULL;
+ else
+- return PTR_ERR(scpd->supply);
++ return ERR_CAST(scpd->supply);
+ }
+ }
+
+- pd_data->num_domains = NUM_DOMAINS;
++ pd_data->num_domains = num;
++
++ init_clks(pdev, clk);
+
+- for (i = 0; i < NUM_DOMAINS; i++) {
++ for (i = 0; i < num; i++) {
+ struct scp_domain *scpd = &scp->domains[i];
+ struct generic_pm_domain *genpd = &scpd->genpd;
+ const struct scp_domain_data *data = &scp_domain_data[i];
+@@ -482,13 +398,37 @@ static int scpsys_probe(struct platform_
+ scpd->scp = scp;
+
+ scpd->data = data;
+- for (j = 0; j < MAX_CLKS && data->clk_id[j]; j++)
+- scpd->clk[j] = clk[data->clk_id[j]];
++
++ for (j = 0; j < MAX_CLKS && data->clk_id[j]; j++) {
++ struct clk *c = clk[data->clk_id[j]];
++
++ if (IS_ERR(c)) {
++ dev_err(&pdev->dev, "%s: clk unavailable\n",
++ data->name);
++ return ERR_CAST(c);
++ }
++
++ scpd->clk[j] = c;
++ }
+
+ genpd->name = data->name;
+ genpd->power_off = scpsys_power_off;
+ genpd->power_on = scpsys_power_on;
+ genpd->dev_ops.active_wakeup = scpsys_active_wakeup;
++ }
++
++ return scp;
++}
++
++static void mtk_register_power_domains(struct platform_device *pdev,
++ struct scp *scp, int num)
++{
++ struct genpd_onecell_data *pd_data;
++ int i, ret;
++
++ for (i = 0; i < num; i++) {
++ struct scp_domain *scpd = &scp->domains[i];
++ struct generic_pm_domain *genpd = &scpd->genpd;
+
+ /*
+ * Initially turn on all domains to make the domains usable
+@@ -507,6 +447,123 @@ static int scpsys_probe(struct platform_
+ * valid.
+ */
+
++ pd_data = &scp->pd_data;
++
++ ret = of_genpd_add_provider_onecell(pdev->dev.of_node, pd_data);
++ if (ret)
++ dev_err(&pdev->dev, "Failed to add OF provider: %d\n", ret);
++}
++
++/*
++ * MT8173 power domain support
++ */
++
++static const struct scp_domain_data scp_domain_data_mt8173[] = {
++ [MT8173_POWER_DOMAIN_VDEC] = {
++ .name = "vdec",
++ .sta_mask = PWR_STATUS_VDEC,
++ .ctl_offs = SPM_VDE_PWR_CON,
++ .sram_pdn_bits = GENMASK(11, 8),
++ .sram_pdn_ack_bits = GENMASK(12, 12),
++ .clk_id = {CLK_MM},
++ },
++ [MT8173_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},
++ },
++ [MT8173_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},
++ },
++ [MT8173_POWER_DOMAIN_MM] = {
++ .name = "mm",
++ .sta_mask = PWR_STATUS_DISP,
++ .ctl_offs = SPM_DIS_PWR_CON,
++ .sram_pdn_bits = GENMASK(11, 8),
++ .sram_pdn_ack_bits = GENMASK(12, 12),
++ .clk_id = {CLK_MM},
++ .bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MM_M0 |
++ MT8173_TOP_AXI_PROT_EN_MM_M1,
++ },
++ [MT8173_POWER_DOMAIN_VENC_LT] = {
++ .name = "venc_lt",
++ .sta_mask = PWR_STATUS_VENC_LT,
++ .ctl_offs = SPM_VEN2_PWR_CON,
++ .sram_pdn_bits = GENMASK(11, 8),
++ .sram_pdn_ack_bits = GENMASK(15, 12),
++ .clk_id = {CLK_MM, CLK_VENC_LT},
++ },
++ [MT8173_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_NONE},
++ },
++ [MT8173_POWER_DOMAIN_USB] = {
++ .name = "usb",
++ .sta_mask = PWR_STATUS_USB,
++ .ctl_offs = SPM_USB_PWR_CON,
++ .sram_pdn_bits = GENMASK(11, 8),
++ .sram_pdn_ack_bits = GENMASK(15, 12),
++ .clk_id = {CLK_NONE},
++ .active_wakeup = true,
++ },
++ [MT8173_POWER_DOMAIN_MFG_ASYNC] = {
++ .name = "mfg_async",
++ .sta_mask = PWR_STATUS_MFG_ASYNC,
++ .ctl_offs = SPM_MFG_ASYNC_PWR_CON,
++ .sram_pdn_bits = GENMASK(11, 8),
++ .sram_pdn_ack_bits = 0,
++ .clk_id = {CLK_MFG},
++ },
++ [MT8173_POWER_DOMAIN_MFG_2D] = {
++ .name = "mfg_2d",
++ .sta_mask = PWR_STATUS_MFG_2D,
++ .ctl_offs = SPM_MFG_2D_PWR_CON,
++ .sram_pdn_bits = GENMASK(11, 8),
++ .sram_pdn_ack_bits = GENMASK(13, 12),
++ .clk_id = {CLK_NONE},
++ },
++ [MT8173_POWER_DOMAIN_MFG] = {
++ .name = "mfg",
++ .sta_mask = PWR_STATUS_MFG,
++ .ctl_offs = SPM_MFG_PWR_CON,
++ .sram_pdn_bits = GENMASK(13, 8),
++ .sram_pdn_ack_bits = GENMASK(21, 16),
++ .clk_id = {CLK_NONE},
++ .bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MFG_S |
++ MT8173_TOP_AXI_PROT_EN_MFG_M0 |
++ MT8173_TOP_AXI_PROT_EN_MFG_M1 |
++ MT8173_TOP_AXI_PROT_EN_MFG_SNOOP_OUT,
++ },
++};
++
++#define NUM_DOMAINS_MT8173 ARRAY_SIZE(scp_domain_data_mt8173)
++
++static int __init scpsys_probe_mt8173(struct platform_device *pdev)
++{
++ struct scp *scp;
++ struct genpd_onecell_data *pd_data;
++ int ret;
++
++ scp = init_scp(pdev, scp_domain_data_mt8173, NUM_DOMAINS_MT8173);
++ if (IS_ERR(scp))
++ return PTR_ERR(scp);
++
++ mtk_register_power_domains(pdev, scp, NUM_DOMAINS_MT8173);
++
++ pd_data = &scp->pd_data;
++
+ ret = pm_genpd_add_subdomain(pd_data->domains[MT8173_POWER_DOMAIN_MFG_ASYNC],
+ pd_data->domains[MT8173_POWER_DOMAIN_MFG_2D]);
+ if (ret && IS_ENABLED(CONFIG_PM))
+@@ -517,21 +574,36 @@ static int scpsys_probe(struct platform_
+ if (ret && IS_ENABLED(CONFIG_PM))
+ dev_err(&pdev->dev, "Failed to add subdomain: %d\n", ret);
+
+- ret = of_genpd_add_provider_onecell(pdev->dev.of_node, pd_data);
+- if (ret)
+- dev_err(&pdev->dev, "Failed to add OF provider: %d\n", ret);
+-
+ return 0;
+ }
+
++/*
++ * scpsys driver init
++ */
++
+ static const struct of_device_id of_scpsys_match_tbl[] = {
+ {
+ .compatible = "mediatek,mt8173-scpsys",
++ .data = scpsys_probe_mt8173,
+ }, {
+ /* sentinel */
+ }
+ };
+
++static int scpsys_probe(struct platform_device *pdev)
++{
++ int (*probe)(struct platform_device *);
++ const struct of_device_id *of_id;
++
++ of_id = of_match_node(of_scpsys_match_tbl, pdev->dev.of_node);
++ if (!of_id || !of_id->data)
++ return -EINVAL;
++
++ probe = of_id->data;
++
++ return probe(pdev);
++}
++
+ static struct platform_driver scpsys_drv = {
+ .probe = scpsys_probe,
+ .driver = {
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