From 3af1f8a41feab47b232b0c3d3b2322426672480d Mon Sep 17 00:00:00 2001 From: Phil Edworthy Date: Mon, 3 Oct 2011 15:16:47 +0100 Subject: serial: sh-sci: Fix up SH-2A SCIF support. This fixes up support for SH-2(A) SCIFs by introducing a new regtype. As expected, it's close to the SH-4A SCIF with fifodata, but still different enough to warrant its own type. Fixes up a number of FIFO overflows and similar for both SH7203/SH7264. Signed-off-by: Phil Edworthy Tested-by: Federico Fuga Signed-off-by: Paul Mundt --- include/linux/serial_sci.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h index 8bffe9ae2ca0..5f3939c67dd8 100644 --- a/include/linux/serial_sci.h +++ b/include/linux/serial_sci.h @@ -67,6 +67,7 @@ enum { SCIx_IRDA_REGTYPE, SCIx_SCIFA_REGTYPE, SCIx_SCIFB_REGTYPE, + SCIx_SH2_SCIF_FIFODATA_REGTYPE, SCIx_SH3_SCIF_REGTYPE, SCIx_SH4_SCIF_REGTYPE, SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE, -- cgit v1.3-18-gd494 From dd2c0ca1b153b555c09fd8e08f6842e12cf8e87b Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 19 Sep 2011 18:51:13 -0700 Subject: sh: clkfwk: add clk_rate_mult_range_round() This provides a clk_rate_mult_range_round() helper for use by some of the CPG PLL ranged multipliers, following the same approach as used by the div ranges. Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt --- drivers/sh/clk/core.c | 20 ++++++++++++++++++++ include/linux/sh_clk.h | 3 +++ 2 files changed, 23 insertions(+) (limited to 'include/linux') diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c index dc8d022c07a1..352036b1f9a2 100644 --- a/drivers/sh/clk/core.c +++ b/drivers/sh/clk/core.c @@ -173,6 +173,26 @@ long clk_rate_div_range_round(struct clk *clk, unsigned int div_min, return clk_rate_round_helper(&div_range_round); } +static long clk_rate_mult_range_iter(unsigned int pos, + struct clk_rate_round_data *rounder) +{ + return clk_get_rate(rounder->arg) * pos; +} + +long clk_rate_mult_range_round(struct clk *clk, unsigned int mult_min, + unsigned int mult_max, unsigned long rate) +{ + struct clk_rate_round_data mult_range_round = { + .min = mult_min, + .max = mult_max, + .func = clk_rate_mult_range_iter, + .arg = clk_get_parent(clk), + .rate = rate, + }; + + return clk_rate_round_helper(&mult_range_round); +} + int clk_rate_table_find(struct clk *clk, struct cpufreq_frequency_table *freq_table, unsigned long rate) diff --git a/include/linux/sh_clk.h b/include/linux/sh_clk.h index 3ccf18648d0a..9237c299641c 100644 --- a/include/linux/sh_clk.h +++ b/include/linux/sh_clk.h @@ -94,6 +94,9 @@ int clk_rate_table_find(struct clk *clk, long clk_rate_div_range_round(struct clk *clk, unsigned int div_min, unsigned int div_max, unsigned long rate); +long clk_rate_mult_range_round(struct clk *clk, unsigned int mult_min, + unsigned int mult_max, unsigned long rate); + long clk_round_parent(struct clk *clk, unsigned long target, unsigned long *best_freq, unsigned long *parent_freq, unsigned int div_min, unsigned int div_max); -- cgit v1.3-18-gd494 From 79e7066415a8b12adbeacc41b3dc44423534b8be Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Fri, 11 Nov 2011 16:11:41 +0900 Subject: sh: clkfwk: Kill off remaining debugfs cruft. Now that all of the named string association with clocks has been migrated to clkdev lookups there's no meaningful named topology that can be constructed for a debugfs tree view. Get rid of the left over bits, and shrink struct clk a bit in the process. Signed-off-by: Paul Mundt --- drivers/sh/clk/core.c | 87 -------------------------------------------------- include/linux/sh_clk.h | 1 - 2 files changed, 88 deletions(-) (limited to 'include/linux') diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c index 352036b1f9a2..db257a35e71a 100644 --- a/drivers/sh/clk/core.c +++ b/drivers/sh/clk/core.c @@ -25,7 +25,6 @@ #include #include #include -#include #include #include #include @@ -225,9 +224,6 @@ int clk_reparent(struct clk *child, struct clk *parent) list_add(&child->sibling, &parent->children); child->parent = parent; - /* now do the debugfs renaming to reattach the child - to the proper parent */ - return 0; } @@ -685,89 +681,6 @@ static int __init clk_syscore_init(void) subsys_initcall(clk_syscore_init); #endif -/* - * debugfs support to trace clock tree hierarchy and attributes - */ -static struct dentry *clk_debugfs_root; - -static int clk_debugfs_register_one(struct clk *c) -{ - int err; - struct dentry *d; - struct clk *pa = c->parent; - char s[255]; - char *p = s; - - p += sprintf(p, "%p", c); - d = debugfs_create_dir(s, pa ? pa->dentry : clk_debugfs_root); - if (!d) - return -ENOMEM; - c->dentry = d; - - d = debugfs_create_u8("usecount", S_IRUGO, c->dentry, (u8 *)&c->usecount); - if (!d) { - err = -ENOMEM; - goto err_out; - } - d = debugfs_create_u32("rate", S_IRUGO, c->dentry, (u32 *)&c->rate); - if (!d) { - err = -ENOMEM; - goto err_out; - } - d = debugfs_create_x32("flags", S_IRUGO, c->dentry, (u32 *)&c->flags); - if (!d) { - err = -ENOMEM; - goto err_out; - } - return 0; - -err_out: - debugfs_remove_recursive(c->dentry); - return err; -} - -static int clk_debugfs_register(struct clk *c) -{ - int err; - struct clk *pa = c->parent; - - if (pa && !pa->dentry) { - err = clk_debugfs_register(pa); - if (err) - return err; - } - - if (!c->dentry) { - err = clk_debugfs_register_one(c); - if (err) - return err; - } - return 0; -} - -static int __init clk_debugfs_init(void) -{ - struct clk *c; - struct dentry *d; - int err; - - d = debugfs_create_dir("clock", NULL); - if (!d) - return -ENOMEM; - clk_debugfs_root = d; - - list_for_each_entry(c, &clock_list, node) { - err = clk_debugfs_register(c); - if (err) - goto err_out; - } - return 0; -err_out: - debugfs_remove_recursive(clk_debugfs_root); - return err; -} -late_initcall(clk_debugfs_init); - static int __init clk_late_init(void) { unsigned long flags; diff --git a/include/linux/sh_clk.h b/include/linux/sh_clk.h index 9237c299641c..a20831cf336a 100644 --- a/include/linux/sh_clk.h +++ b/include/linux/sh_clk.h @@ -52,7 +52,6 @@ struct clk { unsigned long arch_flags; void *priv; - struct dentry *dentry; struct clk_mapping *mapping; struct cpufreq_frequency_table *freq_table; unsigned int nr_freqs; -- cgit v1.3-18-gd494