diff options
| -rw-r--r-- | Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml | 5 | ||||
| -rw-r--r-- | drivers/mtd/devices/mchp48l640.c | 28 | ||||
| -rw-r--r-- | drivers/mtd/devices/phram.c | 13 | ||||
| -rw-r--r-- | drivers/mtd/devices/st_spi_fsm.c | 6 | ||||
| -rw-r--r-- | drivers/mtd/hyperbus/hbmc-am654.c | 21 |
5 files changed, 53 insertions, 20 deletions
diff --git a/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml b/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml index 0ff32bd00bf6..5c6b628c608d 100644 --- a/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml +++ b/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml @@ -16,8 +16,9 @@ description: | properties: compatible: - items: - - const: microchip,48l640 + enum: + - fujitsu,mb85rs128ty + - microchip,48l640 reg: maxItems: 1 diff --git a/drivers/mtd/devices/mchp48l640.c b/drivers/mtd/devices/mchp48l640.c index f576e6a890e8..7584d0ba9396 100644 --- a/drivers/mtd/devices/mchp48l640.c +++ b/drivers/mtd/devices/mchp48l640.c @@ -27,6 +27,7 @@ struct mchp48_caps { unsigned int size; unsigned int page_size; + bool auto_disable_wel; }; struct mchp48l640_flash { @@ -194,9 +195,15 @@ static int mchp48l640_write_page(struct mtd_info *mtd, loff_t to, size_t len, else goto fail; - ret = mchp48l640_waitforbit(flash, MCHP48L640_STATUS_WEL, false); - if (ret) - goto fail; + if (flash->caps->auto_disable_wel) { + ret = mchp48l640_waitforbit(flash, MCHP48L640_STATUS_WEL, false); + if (ret) + goto fail; + } else { + ret = mchp48l640_write_prepare(flash, false); + if (ret) + goto fail; + } kfree(cmd); return 0; @@ -293,6 +300,13 @@ static int mchp48l640_read(struct mtd_info *mtd, loff_t from, size_t len, static const struct mchp48_caps mchp48l640_caps = { .size = SZ_8K, .page_size = 32, + .auto_disable_wel = true, +}; + +static const struct mchp48_caps mb85rs128ty_caps = { + .size = SZ_16K, + .page_size = 256, + .auto_disable_wel = false, }; static int mchp48l640_probe(struct spi_device *spi) @@ -353,6 +367,10 @@ static const struct of_device_id mchp48l640_of_table[] = { .compatible = "microchip,48l640", .data = &mchp48l640_caps, }, + { + .compatible = "fujitsu,mb85rs128ty", + .data = &mb85rs128ty_caps, + }, {} }; MODULE_DEVICE_TABLE(of, mchp48l640_of_table); @@ -362,6 +380,10 @@ static const struct spi_device_id mchp48l640_spi_ids[] = { .name = "48l640", .driver_data = (kernel_ulong_t)&mchp48l640_caps, }, + { + .name = "mb85rs128ty", + .driver_data = (kernel_ulong_t)&mb85rs128ty_caps, + }, {} }; MODULE_DEVICE_TABLE(spi, mchp48l640_spi_ids); diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index f756c60a4931..fd9ec165e61a 100644 --- a/drivers/mtd/devices/phram.c +++ b/drivers/mtd/devices/phram.c @@ -30,6 +30,7 @@ #include <linux/platform_device.h> #include <linux/of_address.h> #include <linux/of.h> +#include <linux/security.h> struct phram_mtd_list { struct mtd_info mtd; @@ -410,19 +411,23 @@ static int __init init_phram(void) { int ret; + ret = security_locked_down(LOCKDOWN_DEV_MEM); + if (ret) + return ret; + ret = platform_driver_register(&phram_driver); if (ret) return ret; #ifndef MODULE - if (phram_paramline[0]) + if (phram_paramline[0]) { ret = phram_setup(phram_paramline); + if (ret) + platform_driver_unregister(&phram_driver); + } phram_init_called = 1; #endif - if (ret) - platform_driver_unregister(&phram_driver); - return ret; } diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c index dba584fa2a53..f2266145b821 100644 --- a/drivers/mtd/devices/st_spi_fsm.c +++ b/drivers/mtd/devices/st_spi_fsm.c @@ -2104,7 +2104,6 @@ static void stfsm_remove(struct platform_device *pdev) WARN_ON(mtd_device_unregister(&fsm->mtd)); } -#ifdef CONFIG_PM_SLEEP static int stfsmfsm_suspend(struct device *dev) { struct stfsm *fsm = dev_get_drvdata(dev); @@ -2120,9 +2119,8 @@ static int stfsmfsm_resume(struct device *dev) return clk_prepare_enable(fsm->clk); } -#endif -static SIMPLE_DEV_PM_OPS(stfsm_pm_ops, stfsmfsm_suspend, stfsmfsm_resume); +static DEFINE_SIMPLE_DEV_PM_OPS(stfsm_pm_ops, stfsmfsm_suspend, stfsmfsm_resume); static const struct of_device_id stfsm_match[] = { { .compatible = "st,spi-fsm", }, @@ -2136,7 +2134,7 @@ static struct platform_driver stfsm_driver = { .driver = { .name = "st-spi-fsm", .of_match_table = stfsm_match, - .pm = &stfsm_pm_ops, + .pm = pm_sleep_ptr(&stfsm_pm_ops), }, }; module_platform_driver(stfsm_driver); diff --git a/drivers/mtd/hyperbus/hbmc-am654.c b/drivers/mtd/hyperbus/hbmc-am654.c index 217f4e69233f..82a1e7b7e4d8 100644 --- a/drivers/mtd/hyperbus/hbmc-am654.c +++ b/drivers/mtd/hyperbus/hbmc-am654.c @@ -174,26 +174,30 @@ static int am654_hbmc_probe(struct platform_device *pdev) priv->hbdev.np = of_get_next_child(np, NULL); ret = of_address_to_resource(priv->hbdev.np, 0, &res); if (ret) - return ret; + goto put_node; - if (of_property_read_bool(dev->of_node, "mux-controls")) { + if (of_property_present(dev->of_node, "mux-controls")) { struct mux_control *control = devm_mux_control_get(dev, NULL); - if (IS_ERR(control)) - return PTR_ERR(control); + if (IS_ERR(control)) { + ret = PTR_ERR(control); + goto put_node; + } ret = mux_control_select(control, 1); if (ret) { dev_err(dev, "Failed to select HBMC mux\n"); - return ret; + goto put_node; } priv->mux_ctrl = control; } priv->hbdev.map.size = resource_size(&res); priv->hbdev.map.virt = devm_ioremap_resource(dev, &res); - if (IS_ERR(priv->hbdev.map.virt)) - return PTR_ERR(priv->hbdev.map.virt); + if (IS_ERR(priv->hbdev.map.virt)) { + ret = PTR_ERR(priv->hbdev.map.virt); + goto disable_mux; + } priv->ctlr.dev = dev; priv->ctlr.ops = &am654_hbmc_ops; @@ -226,6 +230,8 @@ release_dma: disable_mux: if (priv->mux_ctrl) mux_control_deselect(priv->mux_ctrl); +put_node: + of_node_put(priv->hbdev.np); return ret; } @@ -241,6 +247,7 @@ static void am654_hbmc_remove(struct platform_device *pdev) if (dev_priv->rx_chan) dma_release_channel(dev_priv->rx_chan); + of_node_put(priv->hbdev.np); } static const struct of_device_id am654_hbmc_dt_ids[] = { |