Some of the older chips used different bits to arm and trigger the reset. Add the infrastructure needed to specify this through the "compatible" string.
Signed-off-by: Kevin Cernekee <[email protected]> --- drivers/power/reset/brcmstb-reboot.c | 35 ++++++++++++++++++++++++++++------- 1 file changed, 28 insertions(+), 7 deletions(-) diff --git a/drivers/power/reset/brcmstb-reboot.c b/drivers/power/reset/brcmstb-reboot.c index 3306241..4e61c3f 100644 --- a/drivers/power/reset/brcmstb-reboot.c +++ b/drivers/power/reset/brcmstb-reboot.c @@ -11,6 +11,7 @@ * GNU General Public License for more details. */ +#include <linux/bitops.h> #include <linux/device.h> #include <linux/errno.h> #include <linux/init.h> @@ -34,13 +35,20 @@ static struct regmap *regmap; static u32 rst_src_en; static u32 sw_mstr_rst; +struct reset_reg_mask { + u32 rst_src_en_mask; + u32 sw_mstr_rst_mask; +}; + +static const struct reset_reg_mask *reset_masks; + static int brcmstb_restart_handler(struct notifier_block *this, unsigned long mode, void *cmd) { int rc; u32 tmp; - rc = regmap_write(regmap, rst_src_en, 1); + rc = regmap_write(regmap, rst_src_en, reset_masks->rst_src_en_mask); if (rc) { pr_err("failed to write rst_src_en (%d)\n", rc); return NOTIFY_DONE; @@ -52,7 +60,7 @@ static int brcmstb_restart_handler(struct notifier_block *this, return NOTIFY_DONE; } - rc = regmap_write(regmap, sw_mstr_rst, 1); + rc = regmap_write(regmap, sw_mstr_rst, reset_masks->sw_mstr_rst_mask); if (rc) { pr_err("failed to write sw_mstr_rst (%d)\n", rc); return NOTIFY_DONE; @@ -75,10 +83,28 @@ static struct notifier_block brcmstb_restart_nb = { .priority = 128, }; +static const struct reset_reg_mask reset_bits_40nm = { + .rst_src_en_mask = BIT(0), + .sw_mstr_rst_mask = BIT(0), +}; + +static const struct of_device_id of_match[] = { + { .compatible = "brcm,brcmstb-reboot", .data = &reset_bits_40nm }, + {}, +}; + static int brcmstb_reboot_probe(struct platform_device *pdev) { int rc; struct device_node *np = pdev->dev.of_node; + const struct of_device_id *of_id; + + of_id = of_match_node(of_match, np); + if (!of_id) { + pr_err("failed to look up compatible string\n"); + return -EINVAL; + } + reset_masks = of_id->data; regmap = syscon_regmap_lookup_by_phandle(np, "syscon"); if (IS_ERR(regmap)) { @@ -108,11 +134,6 @@ static int brcmstb_reboot_probe(struct platform_device *pdev) return 0; } -static const struct of_device_id of_match[] = { - { .compatible = "brcm,brcmstb-reboot", }, - {}, -}; - static struct platform_driver brcmstb_reboot_driver = { .probe = brcmstb_reboot_probe, .driver = { -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
