Fixes for omap against v4.3-rc5:

- Regulator fix for beagle-x15 to fix HDMI without a SD card being
   inserted
 
 - GPMC fix for showing proper timings and to allow enabling debug
   options that somehow was unselectable earlier
 
 - Add minimal documentation for new MMC1 dependency on
   REGULATOR_PBIAS as it may not be obvious for people with
   targeted .config files
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Merge tag 'omap-for-v4.3/fixes-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "Fixes for omap against v4.3-rc5" from Tony Lindgren:

- Regulator fix for beagle-x15 to fix HDMI without a SD card being
  inserted

- GPMC fix for showing proper timings and to allow enabling debug
  options that somehow was unselectable earlier

- Add minimal documentation for new MMC1 dependency on
  REGULATOR_PBIAS as it may not be obvious for people with
  targeted .config files

* tag 'omap-for-v4.3/fixes-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  Documentation: ARM: List new omap MMC requirements
  memory: omap-gpmc: dump "before" state before first modification
  memory: omap-gpmc: Fix unselectable debug option for GPMC
  ARM: dts: am57xx-beagle-x15: set VDD_SD to always-on

Documentation/arm/OMAP/README

@@ -0,0 +1,7 @@
+This file contains documentation for running mainline
+kernel on omaps.
+
+KERNEL		NEW DEPENDENCIES
+v4.3+		Update is needed for custom .config files to make sure
+		CONFIG_REGULATOR_PBIAS is enabled for MMC1 to work
+		properly.

arch/arm/boot/dts/am57xx-beagle-x15.dts

@@ -402,11 +402,12 @@ smps8_reg: smps8 {
 				/* SMPS9 unused */
 
 				ldo1_reg: ldo1 {
-					/* VDD_SD  */
+					/* VDD_SD / VDDSHV8  */
 					regulator-name = "ldo1";
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <3300000>;
 					regulator-boot-on;
+					regulator-always-on;
 				};
 
 				ldo2_reg: ldo2 {

drivers/memory/Kconfig

@@ -58,12 +58,18 @@ config OMAP_GPMC
 	  memory drives like NOR, NAND, OneNAND, SRAM.
 
 config OMAP_GPMC_DEBUG
-	bool
+	bool "Enable GPMC debug output and skip reset of GPMC during init"
 	depends on OMAP_GPMC
 	help
 	  Enables verbose debugging mostly to decode the bootloader provided
-	  timings. Enable this during development to configure devices
-	  connected to the GPMC bus.
+	  timings. To preserve the bootloader provided timings, the reset
+	  of GPMC is skipped during init. Enable this during development to
+	  configure devices connected to the GPMC bus.
+
+	  NOTE: In addition to matching the register setup with the bootloader
+	  you also need to match the GPMC FCLK frequency used by the
+	  bootloader or else the GPMC timings won't be identical with the
+	  bootloader timings.
 
 config MVEBU_DEVBUS
 	bool "Marvell EBU Device Bus Controller"

drivers/memory/omap-gpmc.c

@@ -696,7 +696,6 @@ int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t,
 	int div;
 	u32 l;
 
-	gpmc_cs_show_timings(cs, "before gpmc_cs_set_timings");
 	div = gpmc_calc_divider(t->sync_clk);
 	if (div < 0)
 		return div;
@@ -1988,6 +1987,7 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
 	if (ret < 0)
 		goto err;
 
+	gpmc_cs_show_timings(cs, "before gpmc_cs_program_settings");
 	ret = gpmc_cs_program_settings(cs, &gpmc_s);
 	if (ret < 0)
 		goto err;