From: Roger Quadros <rogerq@xxxxxx>
Update driver to support without regulators.
Without this patch boards that do not enable regulator config options will
fail to boot with a kernel panic.
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>
---
Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt | 2 ++
drivers/mmc/host/omap_hsmmc.c | 14 ++++++++++----
2 files changed, 12 insertions(+), 4 deletions(-)
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 b2b411d..16c870f 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1551,10 +1551,13 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (ios->power_mode != host->power_mode) {
switch (ios->power_mode) {
case MMC_POWER_OFF:
- mmc_pdata(host)->set_power(host->dev, 0, 0);
+ if (host->use_reg)
+ mmc_pdata(host)->set_power(host->dev, 0, 0);
break;
case MMC_POWER_UP:
- mmc_pdata(host)->set_power(host->dev, 1, ios->vdd);
+ if (host->use_reg)
+ mmc_pdata(host)->set_power(host->dev, 1,
+ ios->vdd);
break;
case MMC_POWER_ON:
do_send_init_stream = 1;
@@ -2082,10 +2085,13 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
if (ret)
goto err_irq;
host->use_reg = 1;
+ mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
+ } else {
+ ret = mmc_of_parse_voltage(pdev->dev.of_node, &mmc->ocr_avail);
+ if (ret)
+ goto err_irq;
}
- mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
-
omap_hsmmc_disable_irq(host);
/*
--
1.9.1
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