Merge tag 'soc-arm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC updates from Arnd Bergmann:
 "The at91 power management code and the TI AM33 platform each get a few
  updates for robustness, the other changes are just minor cleanups"

* tag 'soc-arm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: versatile: clock: convert from round_rate() to determine_rate()
  ARM: rockchip: remove REGULATOR conditional to PM
  ARM: at91: pm: Remove 2.5V regulator
  ARM: OMAP2+: clock: convert from round_rate() to determine_rate()
  ARM: OMAP1: clock: convert from round_rate() to determine_rate()
  ARM: mach-hpe: Rework support and directory structure
  arm: omap2: use string choices helper
  ARM: OMAP2+: pm33xx-core: ix device node reference leaks in amx3_idle_init
  ARM: OMAP2+: use IS_ERR_OR_NULL() helper
  ARM: AM33xx: Implement TI advisory 1.0.36 (EMU0/EMU1 pins state on reset)
  ARM: at91: pm: save and restore ACR during PLL disable/enable
  ARM: at91: pm: fix MCKx restore routine
  ARM: at91: pm: fix .uhp_udp_mask specification for current SoCs
  ARM: shmobile: rcar-gen2: Use SZ_256K definition

Author: torvalds

MAINTAINERS

@@ -2737,7 +2737,6 @@ F:	Documentation/devicetree/bindings/spi/hpe,gxp-spifi.yaml
 F:	Documentation/devicetree/bindings/timer/hpe,gxp-timer.yaml
 F:	Documentation/hwmon/gxp-fan-ctrl.rst
 F:	arch/arm/boot/dts/hpe/
-F:	arch/arm/mach-hpe/
 F:	drivers/clocksource/timer-gxp.c
 F:	drivers/hwmon/gxp-fan-ctrl.c
 F:	drivers/i2c/busses/i2c-gxp.c

arch/arm/Kconfig

@@ -393,8 +393,6 @@ source "arch/arm/mach-highbank/Kconfig"
 
 source "arch/arm/mach-hisi/Kconfig"
 
-source "arch/arm/mach-hpe/Kconfig"
-
 source "arch/arm/mach-imx/Kconfig"
 
 source "arch/arm/mach-ixp4xx/Kconfig"

arch/arm/Kconfig.platforms

@@ -87,6 +87,31 @@ config MACH_ASM9260
 	help
 	  Support for Alphascale ASM9260 based platform.
 
+menuconfig ARCH_HPE
+	bool "HPE SoC support"
+	depends on ARCH_MULTI_V7
+	help
+	  This enables support for HPE ARM based BMC chips.
+
+if ARCH_HPE
+
+config ARCH_HPE_GXP
+	bool "HPE GXP SoC"
+	depends on ARCH_MULTI_V7
+	select ARM_VIC
+	select GENERIC_IRQ_CHIP
+	select CLKSRC_MMIO
+	help
+	  HPE GXP is the name of the HPE Soc. This SoC is used to implement many
+	  BMC features at HPE. It supports ARMv7 architecture based on the Cortex
+	  A9 core. It is capable of using an AXI bus to which a memory controller
+	  is attached. It has multiple SPI interfaces to connect boot flash and
+	  BIOS flash. It uses a 10/100/1000 MAC for network connectivity. It
+	  has multiple i2c engines to drive connectivity with a host
+	  infrastructure.
+
+endif
+
 menuconfig ARCH_MOXART
 	bool "MOXA ART SoC"
 	depends on ARCH_MULTI_V4

arch/arm/Makefile

@@ -189,7 +189,6 @@ machine-$(CONFIG_ARCH_FOOTBRIDGE)	+= footbridge
 machine-$(CONFIG_ARCH_GEMINI)		+= gemini
 machine-$(CONFIG_ARCH_HIGHBANK)		+= highbank
 machine-$(CONFIG_ARCH_HISI)		+= hisi
-machine-$(CONFIG_ARCH_HPE)		+= hpe
 machine-$(CONFIG_ARCH_IXP4XX)		+= ixp4xx
 machine-$(CONFIG_ARCH_KEYSTONE)		+= keystone
 machine-$(CONFIG_ARCH_LPC18XX)		+= lpc18xx

arch/arm/mach-at91/pm.c

@@ -1364,7 +1364,7 @@ static const struct pmc_info pmc_infos[] __initconst = {
 		.version = AT91_PMC_V1,
 	},
 	{
-		.uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP,
+		.uhp_udp_mask = AT91SAM926x_PMC_UHP,
 		.mckr = 0x28,
 		.version = AT91_PMC_V2,
 	},

arch/arm/mach-at91/pm_suspend.S

@@ -87,29 +87,6 @@ tmp3	.req	r6
 
 	.endm
 
-/**
- * Set state for 2.5V low power regulator
- * @ena: 0 - disable regulator
- *	 1 - enable regulator
- *
- * Side effects: overwrites r7, r8, r9, r10
- */
-	.macro at91_2_5V_reg_set_low_power ena
-#ifdef CONFIG_SOC_SAMA7
-	ldr	r7, .sfrbu
-	mov	r8, #\ena
-	ldr	r9, [r7, #AT91_SFRBU_25LDOCR]
-	orr	r9, r9, #AT91_SFRBU_25LDOCR_LP
-	cmp	r8, #1
-	beq	lp_done_\ena
-	bic	r9, r9, #AT91_SFRBU_25LDOCR_LP
-lp_done_\ena:
-	ldr	r10, =AT91_SFRBU_25LDOCR_LDOANAKEY
-	orr	r9, r9, r10
-	str	r9, [r7, #AT91_SFRBU_25LDOCR]
-#endif
-	.endm
-
 	.macro at91_backup_set_lpm reg
 #ifdef CONFIG_SOC_SAMA7
 	orr	\reg, \reg, #0x200000
@@ -689,6 +666,10 @@ sr_dis_exit:
 	bic	tmp2, tmp2, #AT91_PMC_PLL_UPDT_ID
 	str	tmp2, [pmc, #AT91_PMC_PLL_UPDT]
 
+	/* save acr */
+	ldr	tmp2, [pmc, #AT91_PMC_PLL_ACR]
+	str	tmp2, .saved_acr
+
 	/* save div. */
 	mov	tmp1, #0
 	ldr	tmp2, [pmc, #AT91_PMC_PLL_CTRL0]
@@ -758,7 +739,7 @@ sr_dis_exit:
 	str	tmp1, [pmc, #AT91_PMC_PLL_UPDT]
 
 	/* step 2. */
-	ldr	tmp1, =AT91_PMC_PLL_ACR_DEFAULT_PLLA
+	ldr	tmp1, .saved_acr
 	str	tmp1, [pmc, #AT91_PMC_PLL_ACR]
 
 	/* step 3. */
@@ -904,7 +885,7 @@ e_done:
 /**
  * at91_mckx_ps_restore: restore MCKx settings
  *
- * Side effects: overwrites tmp1, tmp2
+ * Side effects: overwrites tmp1, tmp2 and tmp3
  */
 .macro at91_mckx_ps_restore
 #ifdef CONFIG_SOC_SAMA7
@@ -980,7 +961,7 @@ r_ps:
 	bic	tmp3, tmp3, #AT91_PMC_MCR_V2_ID_MSK
 	orr	tmp3, tmp3, tmp1
 	orr	tmp3, tmp3, #AT91_PMC_MCR_V2_CMD
-	str	tmp2, [pmc, #AT91_PMC_MCR_V2]
+	str	tmp3, [pmc, #AT91_PMC_MCR_V2]
 
 	wait_mckrdy tmp1
 
@@ -1019,9 +1000,6 @@ save_mck:
 
 	at91_plla_disable
 
-	/* Enable low power mode for 2.5V regulator. */
-	at91_2_5V_reg_set_low_power 1
-
 	ldr	tmp3, .pm_mode
 	cmp	tmp3, #AT91_PM_ULP1
 	beq	ulp1_mode
@@ -1034,9 +1012,6 @@ ulp1_mode:
 	b	ulp_exit
 
 ulp_exit:
-	/* Disable low power mode for 2.5V regulator. */
-	at91_2_5V_reg_set_low_power 0
-
 	ldr	pmc, .pmc_base
 
 	at91_plla_enable
@@ -1207,6 +1182,8 @@ ENDPROC(at91_pm_suspend_in_sram)
 #endif
 .saved_mckr:
 	.word 0
+.saved_acr:
+	.word 0
 .saved_pllar:
 	.word 0
 .saved_sam9_lpr:

arch/arm/mach-hpe/Kconfig

@@ -705,14 +705,21 @@ static unsigned long omap1_clk_recalc_rate(struct clk_hw *hw, unsigned long p_ra
 	return clk->rate;
 }
 
-static long omap1_clk_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *p_rate)
+static int omap1_clk_determine_rate(struct clk_hw *hw,
+				    struct clk_rate_request *req)
 {
 	struct omap1_clk *clk = to_omap1_clk(hw);
 
-	if (clk->round_rate != NULL)
-		return clk->round_rate(clk, rate, p_rate);
+	if (clk->round_rate != NULL) {
+		req->rate = clk->round_rate(clk, req->rate,
+					    &req->best_parent_rate);
 
-	return omap1_clk_recalc_rate(hw, *p_rate);
+		return 0;
+	}
+
+	req->rate = omap1_clk_recalc_rate(hw, req->best_parent_rate);
+
+	return 0;
 }
 
 static int omap1_clk_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long p_rate)
@@ -771,7 +778,7 @@ const struct clk_ops omap1_clk_gate_ops = {
 
 const struct clk_ops omap1_clk_rate_ops = {
 	.recalc_rate	= omap1_clk_recalc_rate,
-	.round_rate	= omap1_clk_round_rate,
+	.determine_rate = omap1_clk_determine_rate,
 	.set_rate	= omap1_clk_set_rate,
 	.init		= omap1_clk_init_op,
 };
@@ -784,7 +791,7 @@ const struct clk_ops omap1_clk_full_ops = {
 	.disable_unused	= omap1_clk_disable_unused,
 #endif
 	.recalc_rate	= omap1_clk_recalc_rate,
-	.round_rate	= omap1_clk_round_rate,
+	.determine_rate = omap1_clk_determine_rate,
 	.set_rate	= omap1_clk_set_rate,
 	.init		= omap1_clk_init_op,
 };