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authorMarek Vasut <marek.vasut@gmail.com>2010-06-18 07:48:54 +0200
committerEric Miao <eric.y.miao@gmail.com>2010-07-13 16:09:06 +0800
commitd344a21a9a8c29a2f9a29090df134861475a161f (patch)
treef15281c438858fd235a5f37e68769f1cbb274a88 /drivers/pcmcia/pxa2xx_base.c
parent3d3d0fbf4dca6bbca5e9ffff9653c3df031c3449 (diff)
downloadlinux-d344a21a9a8c29a2f9a29090df134861475a161f.tar.gz
[ARM] pxa: fix frequency scaling for pcmcia/pxa2xx_base
The MCxx values must be based off memory clock, not CPU core clock. This also fixes the bug where on some machines the LCD went crazy while using PCMCIA. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Nicolas Pitre <nico@fluxnic.net> Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'drivers/pcmcia/pxa2xx_base.c')
-rw-r--r--drivers/pcmcia/pxa2xx_base.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/pcmcia/pxa2xx_base.c b/drivers/pcmcia/pxa2xx_base.c
index df4532e91b1..f370476d541 100644
--- a/drivers/pcmcia/pxa2xx_base.c
+++ b/drivers/pcmcia/pxa2xx_base.c
@@ -178,7 +178,6 @@ pxa2xx_pcmcia_frequency_change(struct soc_pcmcia_socket *skt,
unsigned long val,
struct cpufreq_freqs *freqs)
{
-#warning "it's not clear if this is right since the core CPU (N) clock has no effect on the memory (L) clock"
switch (val) {
case CPUFREQ_PRECHANGE:
if (freqs->new > freqs->old) {
@@ -186,7 +185,7 @@ pxa2xx_pcmcia_frequency_change(struct soc_pcmcia_socket *skt,
"pre-updating\n",
freqs->new / 1000, (freqs->new / 100) % 10,
freqs->old / 1000, (freqs->old / 100) % 10);
- pxa2xx_pcmcia_set_mcxx(skt, freqs->new);
+ pxa2xx_pcmcia_set_timing(skt);
}
break;
@@ -196,7 +195,7 @@ pxa2xx_pcmcia_frequency_change(struct soc_pcmcia_socket *skt,
"post-updating\n",
freqs->new / 1000, (freqs->new / 100) % 10,
freqs->old / 1000, (freqs->old / 100) % 10);
- pxa2xx_pcmcia_set_mcxx(skt, freqs->new);
+ pxa2xx_pcmcia_set_timing(skt);
}
break;
}