linux-kernel - [PATCH 05/10] ARM: omap2: remove APLL control

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Date:   Mon, 24 Oct 2022 17:38:09 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Tony Lindgren <tony@...mide.com>, linux-omap@...r.kernel.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Arnd Bergmann <arnd@...db.de>
Subject: [PATCH 05/10] ARM: omap2: remove APLL control

From: Arnd Bergmann <arnd@...db.de>

These functions have no callers and can just be removed.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/arm/mach-omap2/cm2xxx.c      | 97 -------------------------------
 arch/arm/mach-omap2/cm2xxx.h      |  5 --
 arch/arm/mach-omap2/cm2xxx_3xxx.h |  5 --
 3 files changed, 107 deletions(-)

diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c
index 0827acb60584..17833e0f22f8 100644
--- a/arch/arm/mach-omap2/cm2xxx.c
+++ b/arch/arm/mach-omap2/cm2xxx.c
@@ -95,103 +95,6 @@ void omap2xxx_cm_set_dpll_auto_low_power_stop(void)
 	_omap2xxx_set_dpll_autoidle(DPLL_AUTOIDLE_DISABLE);
 }
 
-/*
- * APLL control
- */
-
-static void _omap2xxx_set_apll_autoidle(u8 m, u32 mask)
-{
-	u32 v;
-
-	v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
-	v &= ~mask;
-	v |= m << __ffs(mask);
-	omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE);
-}
-
-void omap2xxx_cm_set_apll54_disable_autoidle(void)
-{
-	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP,
-				    OMAP24XX_AUTO_54M_MASK);
-}
-
-void omap2xxx_cm_set_apll54_auto_low_power_stop(void)
-{
-	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE,
-				    OMAP24XX_AUTO_54M_MASK);
-}
-
-void omap2xxx_cm_set_apll96_disable_autoidle(void)
-{
-	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP,
-				    OMAP24XX_AUTO_96M_MASK);
-}
-
-void omap2xxx_cm_set_apll96_auto_low_power_stop(void)
-{
-	_omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE,
-				    OMAP24XX_AUTO_96M_MASK);
-}
-
-/* Enable an APLL if off */
-static int _omap2xxx_apll_enable(u8 enable_bit, u8 status_bit)
-{
-	u32 v, m;
-
-	m = EN_APLL_LOCKED << enable_bit;
-
-	v = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
-	if (v & m)
-		return 0;   /* apll already enabled */
-
-	v |= m;
-	omap2_cm_write_mod_reg(v, PLL_MOD, CM_CLKEN);
-
-	omap2xxx_cm_wait_module_ready(0, PLL_MOD, 1, status_bit);
-
-	/*
-	 * REVISIT: Should we return an error code if
-	 * omap2xxx_cm_wait_module_ready() fails?
-	 */
-	return 0;
-}
-
-/* Stop APLL */
-static void _omap2xxx_apll_disable(u8 enable_bit)
-{
-	u32 v;
-
-	v = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
-	v &= ~(EN_APLL_LOCKED << enable_bit);
-	omap2_cm_write_mod_reg(v, PLL_MOD, CM_CLKEN);
-}
-
-/* Enable an APLL if off */
-int omap2xxx_cm_apll54_enable(void)
-{
-	return _omap2xxx_apll_enable(OMAP24XX_EN_54M_PLL_SHIFT,
-				     OMAP24XX_ST_54M_APLL_SHIFT);
-}
-
-/* Enable an APLL if off */
-int omap2xxx_cm_apll96_enable(void)
-{
-	return _omap2xxx_apll_enable(OMAP24XX_EN_96M_PLL_SHIFT,
-				     OMAP24XX_ST_96M_APLL_SHIFT);
-}
-
-/* Stop APLL */
-void omap2xxx_cm_apll54_disable(void)
-{
-	_omap2xxx_apll_disable(OMAP24XX_EN_54M_PLL_SHIFT);
-}
-
-/* Stop APLL */
-void omap2xxx_cm_apll96_disable(void)
-{
-	_omap2xxx_apll_disable(OMAP24XX_EN_96M_PLL_SHIFT);
-}
-
 /**
  * omap2xxx_cm_split_idlest_reg - split CM_IDLEST reg addr into its components
  * @idlest_reg: CM_IDLEST* virtual address
diff --git a/arch/arm/mach-omap2/cm2xxx.h b/arch/arm/mach-omap2/cm2xxx.h
index 004016d7459e..ee0cb40691b2 100644
--- a/arch/arm/mach-omap2/cm2xxx.h
+++ b/arch/arm/mach-omap2/cm2xxx.h
@@ -46,11 +46,6 @@
 extern void omap2xxx_cm_set_dpll_disable_autoidle(void);
 extern void omap2xxx_cm_set_dpll_auto_low_power_stop(void);
 
-extern void omap2xxx_cm_set_apll54_disable_autoidle(void);
-extern void omap2xxx_cm_set_apll54_auto_low_power_stop(void);
-extern void omap2xxx_cm_set_apll96_disable_autoidle(void);
-extern void omap2xxx_cm_set_apll96_auto_low_power_stop(void);
-
 int omap2xxx_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_id,
 				  u8 idlest_shift);
 extern int omap2xxx_cm_fclks_active(void);
diff --git a/arch/arm/mach-omap2/cm2xxx_3xxx.h b/arch/arm/mach-omap2/cm2xxx_3xxx.h
index 70944b94cc09..6dfc09383160 100644
--- a/arch/arm/mach-omap2/cm2xxx_3xxx.h
+++ b/arch/arm/mach-omap2/cm2xxx_3xxx.h
@@ -93,11 +93,6 @@ static inline u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
 	return omap2_cm_rmw_mod_reg_bits(bits, 0x0, module, idx);
 }
 
-extern int omap2xxx_cm_apll54_enable(void);
-extern void omap2xxx_cm_apll54_disable(void);
-extern int omap2xxx_cm_apll96_enable(void);
-extern void omap2xxx_cm_apll96_disable(void);
-
 #endif
 
 /* CM register bits shared between 24XX and 3430 */
-- 
2.29.2