mci: remove now-duplicate dev->detect implementations in host drivers ...

Previous commit introduced a fall-back MCI hw_dev->detect
implementation. All drivers touched in this commit populate hw_dev, so
lets drop their now-superfluous detect implementations.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: tegra: Use sdhci_set_cmd_xfer_mode() ...

Use sdhci_set_cmd_xfer_mode() to share more code.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: sdhci: remove duplicate register defines for prsstat bits ...

We have duplicate register bit defines for the prsstat register.
Remove the duplicates.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: sdhci: remove duplicate register defines for interrupt bits ...

We have duplicate bit defines for the interrupt bits. Remove the duplicates.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: sdhci: remove duplicate transfer mode register defines ...

We have duplicate register bit defines for the transfer mode register.
Remove the duplicates.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: tegra: Use 16bit register definitions ...

We have some register defines in a 16bit access version and a 32bit
access version. Use the former to get rid of the latter later.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: tegra: use sdhci helpers ...

To use the sdhci helpers we have to switch to the sdhci accessors.
Also use sdhci_read_response().

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: tegra-sdmmc: Drop explicit devname setup code ...

Drop explicit devname setup code. Same setup will be done by
mci_of_parse().

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

driver: replace dev_request_mem_region with dev_request_mem_resource ...

dev_request_mem_region doesn't work properly one some SoCs on which
PTR_ERR() values clash with valid return values from dev_request_mem_region.
Replace them with dev_request_mem_resource where possible.

This patch has been generated with the following semantic patch:

// <smpl>
@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores)) {
...
-	return PTR_ERR(io);
-}
+	return PTR_ERR(iores);
+}
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores))
-	return PTR_ERR(io);
-}
+	return PTR_ERR(iores);
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
-	ret = PTR_ERR(io);
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores)) {
+	ret = PTR_ERR(iores);
...
}
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores))
+	return PTR_ERR(iores);
+io = IOMEM(iores->start);
...+>
}

@@
identifier func;
@@
func(...) {
<+...
struct resource *iores;
-struct resource *iores;
...+>
}
// </smpl>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/tegra'

MCI: tegra-sdmmc: convert to streaming DMA ops ...

Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: tegra: handle mmc aliases ...

This allows to have fixed device names for the SDMMC
controllers.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

resource: Let dev_request_mem_region return an error pointer ...

For all users fix or add the error check.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: tegra: add Tegra124 compatible ...

The controller is similar enough to the ones found
on earlier generation SoCs to not need any additional
changes.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: tegra: don't set 8bit mode unconditionally ...

Those flags should be set from the DT parsing code.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: tegra: apply pad autocalibration on T30 ...

Needed for SD cards connected to sdmmc1 or sdmmc3
to work properly.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: tegra: add reset control ...

Enable the driver to reset the device itself.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mmc: tegra: fix typo ...

Missed OR, so we never enabled failure interrupt
status bits, which prevented the eMMC detect logic
to work properly.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

tegra: add SDMMC controller driver ...

Confirmed working on Tegra 2, may need some small adjustments for
Tegra 3.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>