Commit f6b3f4ac authored by Olof Johansson's avatar Olof Johansson

Merge tag 'v4.17-next-soc' of...

Merge tag 'v4.17-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into next/drivers

- use timeout helpers for scpsys and infracfg drivers
- use of_device_get_match_data in pmic wrapper and scpsys

* tag 'v4.17-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
  soc: mediatek: remove unneeded semicolon
  soc: mediatek: add a fixed wait for SRAM stable
  soc: mediatek: introduce a CAPS flag for scp_domain_data
  soc: mediatek: reuse regmap_read_poll_timeout helpers
  regmap: include <linux/ktime.h> from include/linux/regmap.h
  soc: mediatek: reuse read[l,x]_poll_timeout helpers
  soc: mediatek: use of_device_get_match_data()
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parents 3ea8f233 0afd32c6
......@@ -17,6 +17,9 @@
#include <linux/soc/mediatek/infracfg.h>
#include <asm/processor.h>
#define MTK_POLL_DELAY_US 10
#define MTK_POLL_TIMEOUT (jiffies_to_usecs(HZ))
#define INFRA_TOPAXI_PROTECTEN 0x0220
#define INFRA_TOPAXI_PROTECTSTA1 0x0228
#define INFRA_TOPAXI_PROTECTEN_SET 0x0260
......@@ -37,7 +40,6 @@
int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
bool reg_update)
{
unsigned long expired;
u32 val;
int ret;
......@@ -47,22 +49,11 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
else
regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_SET, mask);
expired = jiffies + HZ;
while (1) {
ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
if (ret)
return ret;
if ((val & mask) == mask)
break;
ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
val, (val & mask) == mask,
MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
cpu_relax();
if (time_after(jiffies, expired))
return -EIO;
}
return 0;
return ret;
}
/**
......@@ -80,30 +71,17 @@ int mtk_infracfg_set_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;
u32 val;
if (reg_update)
regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, 0);
else
regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_CLR, mask);
expired = jiffies + HZ;
while (1) {
u32 val;
ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
if (ret)
return ret;
if (!(val & mask))
break;
cpu_relax();
if (time_after(jiffies, expired))
return -EIO;
}
ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
val, !(val & mask),
MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
return 0;
return ret;
}
......@@ -1458,19 +1458,12 @@ static int pwrap_probe(struct platform_device *pdev)
int ret, irq;
struct pmic_wrapper *wrp;
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *of_id =
of_match_device(of_pwrap_match_tbl, &pdev->dev);
const struct of_device_id *of_slave_id = NULL;
struct resource *res;
if (!of_id) {
dev_err(&pdev->dev, "Error: No device match found\n");
return -ENODEV;
}
if (np->child)
of_slave_id = of_match_node(of_slave_match_tbl, np->child);
if (pdev->dev.of_node->child)
of_slave_id = of_match_node(of_slave_match_tbl,
pdev->dev.of_node->child);
if (!of_slave_id) {
dev_dbg(&pdev->dev, "slave pmic should be defined in dts\n");
return -EINVAL;
......@@ -1482,7 +1475,7 @@ static int pwrap_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, wrp);
wrp->master = of_id->data;
wrp->master = of_device_get_match_data(&pdev->dev);
wrp->slave = of_slave_id->data;
wrp->dev = &pdev->dev;
......
......@@ -13,6 +13,7 @@
#include <linux/clk.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/iopoll.h>
#include <linux/mfd/syscon.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
......@@ -27,6 +28,13 @@
#include <dt-bindings/power/mt7623a-power.h>
#include <dt-bindings/power/mt8173-power.h>
#define MTK_POLL_DELAY_US 10
#define MTK_POLL_TIMEOUT (jiffies_to_usecs(HZ))
#define MTK_SCPD_ACTIVE_WAKEUP BIT(0)
#define MTK_SCPD_FWAIT_SRAM BIT(1)
#define MTK_SCPD_CAPS(_scpd, _x) ((_scpd)->data->caps & (_x))
#define SPM_VDE_PWR_CON 0x0210
#define SPM_MFG_PWR_CON 0x0214
#define SPM_VEN_PWR_CON 0x0230
......@@ -116,7 +124,7 @@ struct scp_domain_data {
u32 sram_pdn_ack_bits;
u32 bus_prot_mask;
enum clk_id clk_id[MAX_CLKS];
bool active_wakeup;
u8 caps;
};
struct scp;
......@@ -184,12 +192,10 @@ static int scpsys_power_on(struct generic_pm_domain *genpd)
{
struct scp_domain *scpd = container_of(genpd, struct scp_domain, genpd);
struct scp *scp = scpd->scp;
unsigned long timeout;
bool expired;
void __iomem *ctl_addr = scp->base + scpd->data->ctl_offs;
u32 sram_pdn_ack = scpd->data->sram_pdn_ack_bits;
u32 pdn_ack = scpd->data->sram_pdn_ack_bits;
u32 val;
int ret;
int ret, tmp;
int i;
if (scpd->supply) {
......@@ -215,23 +221,10 @@ static int scpsys_power_on(struct generic_pm_domain *genpd)
writel(val, ctl_addr);
/* wait until PWR_ACK = 1 */
timeout = jiffies + HZ;
expired = false;
while (1) {
ret = scpsys_domain_is_on(scpd);
if (ret > 0)
break;
if (expired) {
ret = -ETIMEDOUT;
goto err_pwr_ack;
}
cpu_relax();
if (time_after(jiffies, timeout))
expired = true;
}
ret = readx_poll_timeout(scpsys_domain_is_on, scpd, tmp, tmp > 0,
MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
if (ret < 0)
goto err_pwr_ack;
val &= ~PWR_CLK_DIS_BIT;
writel(val, ctl_addr);
......@@ -245,20 +238,20 @@ static int scpsys_power_on(struct generic_pm_domain *genpd)
val &= ~scpd->data->sram_pdn_bits;
writel(val, ctl_addr);
/* wait until SRAM_PDN_ACK all 0 */
timeout = jiffies + HZ;
expired = false;
while (sram_pdn_ack && (readl(ctl_addr) & sram_pdn_ack)) {
/* Either wait until SRAM_PDN_ACK all 0 or have a force wait */
if (MTK_SCPD_CAPS(scpd, MTK_SCPD_FWAIT_SRAM)) {
/*
* Currently, MTK_SCPD_FWAIT_SRAM is necessary only for
* MT7622_POWER_DOMAIN_WB and thus just a trivial setup is
* applied here.
*/
usleep_range(12000, 12100);
if (expired) {
ret = -ETIMEDOUT;
} else {
ret = readl_poll_timeout(ctl_addr, tmp, (tmp & pdn_ack) == 0,
MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
if (ret < 0)
goto err_pwr_ack;
}
cpu_relax();
if (time_after(jiffies, timeout))
expired = true;
}
if (scpd->data->bus_prot_mask) {
......@@ -289,12 +282,10 @@ static int scpsys_power_off(struct generic_pm_domain *genpd)
{
struct scp_domain *scpd = container_of(genpd, struct scp_domain, genpd);
struct scp *scp = scpd->scp;
unsigned long timeout;
bool expired;
void __iomem *ctl_addr = scp->base + scpd->data->ctl_offs;
u32 pdn_ack = scpd->data->sram_pdn_ack_bits;
u32 val;
int ret;
int ret, tmp;
int i;
if (scpd->data->bus_prot_mask) {
......@@ -310,19 +301,10 @@ static int scpsys_power_off(struct generic_pm_domain *genpd)
writel(val, ctl_addr);
/* wait until SRAM_PDN_ACK all 1 */
timeout = jiffies + HZ;
expired = false;
while (pdn_ack && (readl(ctl_addr) & pdn_ack) != pdn_ack) {
if (expired) {
ret = -ETIMEDOUT;
goto out;
}
cpu_relax();
if (time_after(jiffies, timeout))
expired = true;
}
ret = readl_poll_timeout(ctl_addr, tmp, (tmp & pdn_ack) == pdn_ack,
MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
if (ret < 0)
goto out;
val |= PWR_ISO_BIT;
writel(val, ctl_addr);
......@@ -340,23 +322,10 @@ static int scpsys_power_off(struct generic_pm_domain *genpd)
writel(val, ctl_addr);
/* wait until PWR_ACK = 0 */
timeout = jiffies + HZ;
expired = false;
while (1) {
ret = scpsys_domain_is_on(scpd);
if (ret == 0)
break;
if (expired) {
ret = -ETIMEDOUT;
goto out;
}
cpu_relax();
if (time_after(jiffies, timeout))
expired = true;
}
ret = readx_poll_timeout(scpsys_domain_is_on, scpd, tmp, tmp == 0,
MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
if (ret < 0)
goto out;
for (i = 0; i < MAX_CLKS && scpd->clk[i]; i++)
clk_disable_unprepare(scpd->clk[i]);
......@@ -469,7 +438,7 @@ static struct scp *init_scp(struct platform_device *pdev,
genpd->name = data->name;
genpd->power_off = scpsys_power_off;
genpd->power_on = scpsys_power_on;
if (scpd->data->active_wakeup)
if (MTK_SCPD_CAPS(scpd, MTK_SCPD_ACTIVE_WAKEUP))
genpd->flags |= GENPD_FLAG_ACTIVE_WAKEUP;
}
......@@ -522,7 +491,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_CONN_M |
MT2701_TOP_AXI_PROT_EN_CONN_S,
.clk_id = {CLK_NONE},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2701_POWER_DOMAIN_DISP] = {
.name = "disp",
......@@ -531,7 +500,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
.sram_pdn_bits = GENMASK(11, 8),
.clk_id = {CLK_MM},
.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_MM_M0,
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2701_POWER_DOMAIN_MFG] = {
.name = "mfg",
......@@ -540,7 +509,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(12, 12),
.clk_id = {CLK_MFG},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2701_POWER_DOMAIN_VDEC] = {
.name = "vdec",
......@@ -549,7 +518,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(12, 12),
.clk_id = {CLK_MM},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2701_POWER_DOMAIN_ISP] = {
.name = "isp",
......@@ -558,7 +527,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(13, 12),
.clk_id = {CLK_MM},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2701_POWER_DOMAIN_BDP] = {
.name = "bdp",
......@@ -566,7 +535,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
.ctl_offs = SPM_BDP_PWR_CON,
.sram_pdn_bits = GENMASK(11, 8),
.clk_id = {CLK_NONE},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2701_POWER_DOMAIN_ETH] = {
.name = "eth",
......@@ -575,7 +544,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(15, 12),
.clk_id = {CLK_ETHIF},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2701_POWER_DOMAIN_HIF] = {
.name = "hif",
......@@ -584,14 +553,14 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(15, 12),
.clk_id = {CLK_ETHIF},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2701_POWER_DOMAIN_IFR_MSC] = {
.name = "ifr_msc",
.sta_mask = PWR_STATUS_IFR_MSC,
.ctl_offs = SPM_IFR_MSC_PWR_CON,
.clk_id = {CLK_NONE},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
};
......@@ -606,7 +575,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
.sram_pdn_bits = GENMASK(8, 8),
.sram_pdn_ack_bits = GENMASK(12, 12),
.clk_id = {CLK_MM},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2712_POWER_DOMAIN_VDEC] = {
.name = "vdec",
......@@ -615,7 +584,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
.sram_pdn_bits = GENMASK(8, 8),
.sram_pdn_ack_bits = GENMASK(12, 12),
.clk_id = {CLK_MM, CLK_VDEC},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2712_POWER_DOMAIN_VENC] = {
.name = "venc",
......@@ -624,7 +593,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(15, 12),
.clk_id = {CLK_MM, CLK_VENC, CLK_JPGDEC},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2712_POWER_DOMAIN_ISP] = {
.name = "isp",
......@@ -633,7 +602,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(13, 12),
.clk_id = {CLK_MM},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2712_POWER_DOMAIN_AUDIO] = {
.name = "audio",
......@@ -642,7 +611,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(15, 12),
.clk_id = {CLK_AUDIO},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2712_POWER_DOMAIN_USB] = {
.name = "usb",
......@@ -651,7 +620,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
.sram_pdn_bits = GENMASK(10, 8),
.sram_pdn_ack_bits = GENMASK(14, 12),
.clk_id = {CLK_NONE},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2712_POWER_DOMAIN_USB2] = {
.name = "usb2",
......@@ -660,7 +629,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
.sram_pdn_bits = GENMASK(10, 8),
.sram_pdn_ack_bits = GENMASK(14, 12),
.clk_id = {CLK_NONE},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2712_POWER_DOMAIN_MFG] = {
.name = "mfg",
......@@ -670,7 +639,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
.sram_pdn_ack_bits = GENMASK(16, 16),
.clk_id = {CLK_MFG},
.bus_prot_mask = BIT(14) | BIT(21) | BIT(23),
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2712_POWER_DOMAIN_MFG_SC1] = {
.name = "mfg_sc1",
......@@ -679,7 +648,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
.sram_pdn_bits = GENMASK(8, 8),
.sram_pdn_ack_bits = GENMASK(16, 16),
.clk_id = {CLK_NONE},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2712_POWER_DOMAIN_MFG_SC2] = {
.name = "mfg_sc2",
......@@ -688,7 +657,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
.sram_pdn_bits = GENMASK(8, 8),
.sram_pdn_ack_bits = GENMASK(16, 16),
.clk_id = {CLK_NONE},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT2712_POWER_DOMAIN_MFG_SC3] = {
.name = "mfg_sc3",
......@@ -697,7 +666,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
.sram_pdn_bits = GENMASK(8, 8),
.sram_pdn_ack_bits = GENMASK(16, 16),
.clk_id = {CLK_NONE},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
};
......@@ -797,7 +766,7 @@ static const struct scp_domain_data scp_domain_data_mt7622[] = {
.sram_pdn_ack_bits = GENMASK(15, 12),
.clk_id = {CLK_NONE},
.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_ETHSYS,
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT7622_POWER_DOMAIN_HIF0] = {
.name = "hif0",
......@@ -807,7 +776,7 @@ static const struct scp_domain_data scp_domain_data_mt7622[] = {
.sram_pdn_ack_bits = GENMASK(15, 12),
.clk_id = {CLK_HIFSEL},
.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_HIF0,
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT7622_POWER_DOMAIN_HIF1] = {
.name = "hif1",
......@@ -817,7 +786,7 @@ static const struct scp_domain_data scp_domain_data_mt7622[] = {
.sram_pdn_ack_bits = GENMASK(15, 12),
.clk_id = {CLK_HIFSEL},
.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_HIF1,
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT7622_POWER_DOMAIN_WB] = {
.name = "wb",
......@@ -827,7 +796,7 @@ static const struct scp_domain_data scp_domain_data_mt7622[] = {
.sram_pdn_ack_bits = 0,
.clk_id = {CLK_NONE},
.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_WB,
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP | MTK_SCPD_FWAIT_SRAM,
},
};
......@@ -843,7 +812,7 @@ static const struct scp_domain_data scp_domain_data_mt7623a[] = {
.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_CONN_M |
MT2701_TOP_AXI_PROT_EN_CONN_S,
.clk_id = {CLK_NONE},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT7623A_POWER_DOMAIN_ETH] = {
.name = "eth",
......@@ -852,7 +821,7 @@ static const struct scp_domain_data scp_domain_data_mt7623a[] = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(15, 12),
.clk_id = {CLK_ETHIF},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT7623A_POWER_DOMAIN_HIF] = {
.name = "hif",
......@@ -861,14 +830,14 @@ static const struct scp_domain_data scp_domain_data_mt7623a[] = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(15, 12),
.clk_id = {CLK_ETHIF},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT7623A_POWER_DOMAIN_IFR_MSC] = {
.name = "ifr_msc",
.sta_mask = PWR_STATUS_IFR_MSC,
.ctl_offs = SPM_IFR_MSC_PWR_CON,
.clk_id = {CLK_NONE},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
};
......@@ -934,7 +903,7 @@ static const struct scp_domain_data scp_domain_data_mt8173[] = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(15, 12),
.clk_id = {CLK_NONE},
.active_wakeup = true,
.caps = MTK_SCPD_ACTIVE_WAKEUP,
},
[MT8173_POWER_DOMAIN_MFG_ASYNC] = {
.name = "mfg_async",
......@@ -1067,15 +1036,13 @@ static const struct of_device_id of_scpsys_match_tbl[] = {
static int scpsys_probe(struct platform_device *pdev)
{
const struct of_device_id *match;
const struct scp_subdomain *sd;
const struct scp_soc_data *soc;
struct scp *scp;
struct genpd_onecell_data *pd_data;
int i, ret;
match = of_match_device(of_scpsys_match_tbl, &pdev->dev);
soc = (const struct scp_soc_data *)match->data;
soc = of_device_get_match_data(&pdev->dev);
scp = init_scp(pdev, soc->domains, soc->num_domains, &soc->regs,
soc->bus_prot_reg_update);
......
......@@ -15,6 +15,7 @@
#include <linux/list.h>
#include <linux/rbtree.h>
#include <linux/ktime.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/bug.h>
......
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