diff mbox

[07/19] sh: Don't set sh-sci port_reg

Message ID 20170103230639.19660-8-laurent.pinchart+renesas@ideasonboard.com (mailing list archive)
State New, archived
Headers show

Commit Message

Laurent Pinchart Jan. 3, 2017, 11:06 p.m. UTC 
The driver considers all negative or zero values of the port_reg field
as invalid. The four platforms that set the field to a register address
all use an address higher than 0x7fffffff, which is thus considered by
the driver as invalid. The feature is thus never used, remove it.

The feature could be implemented properly in the future using the
pinctrl and GPIO APIs if desired.

While at it, don't set the field to SCIx_NOT_SUPPORTED (-1) either,
leaving it unset leads to the same result. This will allow removing the
SCIx_NOT_SUPPORTED macro.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh3/setup-sh770x.c  | 2 --
 arch/sh/kernel/cpu/sh4/setup-sh7750.c  | 1 -
 arch/sh/kernel/cpu/sh4a/setup-sh7366.c | 1 -
 arch/sh/kernel/cpu/sh4a/setup-sh7723.c | 6 ------
 arch/sh/kernel/cpu/sh4a/setup-sh7724.c | 6 ------
 5 files changed, 16 deletions(-)

Comments

Geert Uytterhoeven Jan. 6, 2017, 10:17 a.m. UTC | #1 
On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The driver considers all negative or zero values of the port_reg field
> as invalid. The four platforms that set the field to a register address
> all use an address higher than 0x7fffffff, which is thus considered by
> the driver as invalid. The feature is thus never used, remove it.

Yeah, it's been broken since v3.1
(commit 514820eb982eb856 ("serial: sh-sci: Consolidate RXD pin handling")).

> The feature could be implemented properly in the future using the
> pinctrl and GPIO APIs if desired.
>
> While at it, don't set the field to SCIx_NOT_SUPPORTED (-1) either,
> leaving it unset leads to the same result. This will allow removing the
> SCIx_NOT_SUPPORTED macro.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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diff mbox

Patch

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index e64fe24d860c..e1e54258b822 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -109,7 +109,6 @@  static struct platform_device rtc_device = {
 };
 
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= 0xa4000136,
 	.type		= PORT_SCI,
 	.ops		= &sh770x_sci_port_ops,
 	.regshift	= 1,
@@ -156,7 +155,6 @@  static struct platform_device scif1_device = {
 #if defined(CONFIG_CPU_SUBTYPE_SH7707) || \
     defined(CONFIG_CPU_SUBTYPE_SH7709)
 static struct plat_sci_port scif2_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.type		= PORT_IRDA,
 	.ops		= &sh770x_sci_port_ops,
 	.regshift	= 1,
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index f693f122a286..d98a55416306 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -38,7 +38,6 @@  static struct platform_device rtc_device = {
 };
 
 static struct plat_sci_port sci_platform_data = {
-	.port_reg	= 0xffe0001C,
 	.type		= PORT_SCI,
 	.regshift	= 2,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
index 3fc1a3ab634e..646918713d9a 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
@@ -20,7 +20,6 @@ 
 #include <asm/clock.h>
 
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= 0xa405013e,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index 9f47ec950af8..6c5cb234aa33 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
@@ -23,7 +23,6 @@ 
 
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= 0xa4050160,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -45,7 +44,6 @@  static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -67,7 +65,6 @@  static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -89,7 +86,6 @@  static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
@@ -111,7 +107,6 @@  static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
@@ -133,7 +128,6 @@  static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
index 3ce55884c787..c20258b18775 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
@@ -290,7 +290,6 @@  static struct platform_device dma1_device = {
 
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -312,7 +311,6 @@  static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -334,7 +332,6 @@  static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -356,7 +353,6 @@  static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -377,7 +373,6 @@  static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -398,7 +393,6 @@  static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };