[PATCH RESEND v4 12/37] mtd: st_spi_fsm: Fetch platform specific configurations
From: Lee Jones <hidden>
Date: 2014-01-23 10:32:16
Also in:
lkml
Subsystem:
memory technology devices (mtd), the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Linus Torvalds
All supported platforms are able to pass specific configurations via the Device Tree on boot. Here we add a function which is to be called during the probing process which will extract them, or make other assumptions based on capabilities provided. Signed-off-by: Lee Jones <redacted> --- drivers/mtd/devices/st_spi_fsm.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index efd8fdb..1803f94 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c@@ -654,6 +654,16 @@ static int stfsm_init(struct stfsm *fsm) return 0; } +static void stfsm_fetch_platform_configs(struct platform_device *pdev) +{ + struct stfsm *fsm = platform_get_drvdata(pdev); + struct flash_info *info = fsm->info; + + /* Use device size to determine address width */ + if (info->sector_size * info->n_sectors > 0xFFFFFF) + info->flags |= FLASH_FLAG_32BIT_ADDR; +} + static int stfsm_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node;
@@ -712,6 +722,8 @@ static int stfsm_probe(struct platform_device *pdev) platform_set_drvdata(pdev, fsm); + stfsm_fetch_platform_configs(pdev); + fsm->mtd.dev.parent = &pdev->dev; fsm->mtd.type = MTD_NORFLASH; fsm->mtd.writesize = 4;
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1.8.3.2