This patch enables 'wait-pin' monitoring in NAND driver if following properties
are present under NAND DT node
gpmc,wait-pin = <wait-pin number>
gpmc,wait-on-read;
gpmc,wait-on-write;
As NAND generic framework uses common path nand_chip->dev_ready() for monitoring
completion of Read and Write status, so wait-pin monitoring is enabled only when
both 'gpmc,wait-on-read' and 'gpmc,wait-on-write' are specified.
Signed-off-by: Pekon Gupta <pekon@xxxxxx>
---
arch/arm/mach-omap2/gpmc-nand.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-omap2/gpmc-nand.c b/arch/arm/mach-omap2/gpmc-nand.c
index 4349e82..7dc742d 100644
--- a/arch/arm/mach-omap2/gpmc-nand.c
+++ b/arch/arm/mach-omap2/gpmc-nand.c
@@ -123,11 +123,13 @@ int gpmc_nand_init(struct omap_nand_platform_data *gpmc_nand_data,
}
}
- if (gpmc_nand_data->of_node)
+ if (gpmc_nand_data->of_node) {
gpmc_read_settings_dt(gpmc_nand_data->of_node, &s);
- else
+ if (s.wait_on_read && s.wait_on_write)
+ gpmc_nand_data->dev_ready = "true";
+ } else {
gpmc_set_legacy(gpmc_nand_data, &s);
-
+ }
s.device_nand = true;
err = gpmc_cs_program_settings(gpmc_nand_data->cs, &s);
--
1.8.5.1.163.gd7aced9
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