From: Roger Quadros <rogerq@xxxxxx>
For platforms that doesn't have explicit regulator control in MMC,
populate voltage-ranges in MMC device tree node and use
mmc_of_parse_voltage to get ocr_avail
Signed-off-by: Roger Quadros <rogerq@xxxxxx>
Signed-off-by: Lokesh Vutla <lokeshvutla@xxxxxx>
Signed-off-by: Murali Karicheri <m-karicheri2@xxxxxx>
Signed-off-by: Franklin S Cooper Jr <fcooper@xxxxxx>
Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
---
.../devicetree/bindings/mmc/ti-omap-hsmmc.txt | 2 ++
drivers/mmc/host/omap_hsmmc.c | 9 ++++++++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
index 76bf087..2408e87 100644
--- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
+++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
@@ -22,6 +22,8 @@ ti,dual-volt: boolean, supports dual voltage cards
ti,non-removable: non-removable slot (like eMMC)
ti,needs-special-reset: Requires a special softreset sequence
ti,needs-special-hs-handling: HSMMC IP needs special setting for handling High Speed
+voltage-ranges: Specify the voltage range supported if regulator framework
+isn't enabled.
dmas: List of DMA specifiers with the controller specific format
as described in the generic DMA client binding. A tx and rx
specifier is required.
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 15973f1..d884d8f 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2184,7 +2184,13 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
goto err_irq;
}
- mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
+ if (!mmc_pdata(host)->ocr_mask) {
+ ret = mmc_of_parse_voltage(pdev->dev.of_node, &mmc->ocr_avail);
+ if (ret)
+ goto err_parse_voltage;
+ } else {
+ mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
+ }
omap_hsmmc_disable_irq(host);
@@ -2224,6 +2230,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
err_slot_name:
mmc_remove_host(mmc);
+err_parse_voltage:
omap_hsmmc_reg_put(host);
err_irq:
device_init_wakeup(&pdev->dev, false);
--
1.7.9.5
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