powerpc/cpm2: Remove cpm2_map() and cpm2_unmap()

Since commit 449012da ("[POWERPC] cpm2: Infrastructure code
cleanup.") cpm2_map() is just returning cpm2_immr pointer and
cpm2_unmap() does nothing.

We already have parts of code that use cpm2_immr directly so get rid
of cpm2_map() and cpm2_unmap() by using cpm2_immr directly. And avoid
going through local pointers that hide the pointed structure.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/9fe6ff7284e9f968b12abe7de7c08d7ea40e29d6.1691474658.git.christophe.leroy@csgroup.eu

arch/powerpc/include/asm/fs_pd.h

@@ -14,14 +14,6 @@
 #include <sysdev/fsl_soc.h>
 #include <asm/time.h>
 
-#ifdef CONFIG_CPM2
-#include <asm/cpm2.h>
-
-#define cpm2_map(member) (&cpm2_immr->member)
-#define cpm2_map_size(member, size) (&cpm2_immr->member)
-#define cpm2_unmap(addr) do {} while(0)
-#endif
-
 static inline int uart_baudrate(void)
 {
         return get_baudrate();

arch/powerpc/sysdev/cpm2.c

@@ -40,7 +40,6 @@
 #include <asm/page.h>
 #include <asm/cpm2.h>
 #include <asm/rheap.h>
-#include <asm/fs_pd.h>
 
 #include <sysdev/fsl_soc.h>
 
@@ -118,9 +117,9 @@ void __cpm2_setbrg(uint brg, uint rate, uint clk, int div16, int src)
 	/* This is good enough to get SMCs running.....
 	*/
 	if (brg < 4) {
-		bp = cpm2_map_size(im_brgc1, 16);
+		bp = &cpm2_immr->im_brgc1;
 	} else {
-		bp = cpm2_map_size(im_brgc5, 16);
+		bp = &cpm2_immr->im_brgc5;
 		brg -= 4;
 	}
 	bp += brg;
@@ -130,7 +129,6 @@ void __cpm2_setbrg(uint brg, uint rate, uint clk, int div16, int src)
 		val |= CPM_BRG_DIV16;
 
 	out_be32(bp, val);
-	cpm2_unmap(bp);
 }
 EXPORT_SYMBOL(__cpm2_setbrg);
 
@@ -139,7 +137,6 @@ int __init cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode)
 	int ret = 0;
 	int shift;
 	int i, bits = 0;
-	cpmux_t __iomem *im_cpmux;
 	u32 __iomem *reg;
 	u32 mask = 7;
 
@@ -202,35 +199,33 @@ int __init cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode)
 		{CPM_CLK_SCC4, CPM_CLK8, 7},
 	};
 
-	im_cpmux = cpm2_map(im_cpmux);
-
 	switch (target) {
 	case CPM_CLK_SCC1:
-		reg = &im_cpmux->cmx_scr;
+		reg = &cpm2_immr->im_cpmux.cmx_scr;
 		shift = 24;
 		break;
 	case CPM_CLK_SCC2:
-		reg = &im_cpmux->cmx_scr;
+		reg = &cpm2_immr->im_cpmux.cmx_scr;
 		shift = 16;
 		break;
 	case CPM_CLK_SCC3:
-		reg = &im_cpmux->cmx_scr;
+		reg = &cpm2_immr->im_cpmux.cmx_scr;
 		shift = 8;
 		break;
 	case CPM_CLK_SCC4:
-		reg = &im_cpmux->cmx_scr;
+		reg = &cpm2_immr->im_cpmux.cmx_scr;
 		shift = 0;
 		break;
 	case CPM_CLK_FCC1:
-		reg = &im_cpmux->cmx_fcr;
+		reg = &cpm2_immr->im_cpmux.cmx_fcr;
 		shift = 24;
 		break;
 	case CPM_CLK_FCC2:
-		reg = &im_cpmux->cmx_fcr;
+		reg = &cpm2_immr->im_cpmux.cmx_fcr;
 		shift = 16;
 		break;
 	case CPM_CLK_FCC3:
-		reg = &im_cpmux->cmx_fcr;
+		reg = &cpm2_immr->im_cpmux.cmx_fcr;
 		shift = 8;
 		break;
 	default:
@@ -260,7 +255,6 @@ int __init cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode)
 
 	out_be32(reg, (in_be32(reg) & ~mask) | bits);
 
-	cpm2_unmap(im_cpmux);
 	return ret;
 }
 
@@ -269,7 +263,6 @@ int __init cpm2_smc_clk_setup(enum cpm_clk_target target, int clock)
 	int ret = 0;
 	int shift;
 	int i, bits = 0;
-	cpmux_t __iomem *im_cpmux;
 	u8 __iomem *reg;
 	u8 mask = 3;
 
@@ -284,16 +277,14 @@ int __init cpm2_smc_clk_setup(enum cpm_clk_target target, int clock)
 		{CPM_CLK_SMC2, CPM_CLK15, 3},
 	};
 
-	im_cpmux = cpm2_map(im_cpmux);
-
 	switch (target) {
 	case CPM_CLK_SMC1:
-		reg = &im_cpmux->cmx_smr;
+		reg = &cpm2_immr->im_cpmux.cmx_smr;
 		mask = 3;
 		shift = 4;
 		break;
 	case CPM_CLK_SMC2:
-		reg = &im_cpmux->cmx_smr;
+		reg = &cpm2_immr->im_cpmux.cmx_smr;
 		mask = 3;
 		shift = 0;
 		break;
@@ -316,7 +307,6 @@ int __init cpm2_smc_clk_setup(enum cpm_clk_target target, int clock)
 
 	out_8(reg, (in_8(reg) & ~mask) | bits);
 
-	cpm2_unmap(im_cpmux);
 	return ret;
 }
 

arch/powerpc/sysdev/cpm2_pic.c

@@ -34,7 +34,6 @@
 
 #include <asm/immap_cpm2.h>
 #include <asm/io.h>
-#include <asm/fs_pd.h>
 
 #include "cpm2_pic.h"
 
@@ -230,7 +229,7 @@ void cpm2_pic_init(struct device_node *node)
 {
 	int i;
 
-	cpm2_intctl = cpm2_map(im_intctl);
+	cpm2_intctl = &cpm2_immr->im_intctl;
 
 	/* Clear the CPM IRQ controller, in case it has any bits set
 	 * from the bootloader