Re: [PATCH] ASoC: fsl_ssi: fix AC'97 mode
W dniu 28.06.2015 06:27, Timur Tabi pisze:
Maciej S. Szmigiero wrote:
+if (newbinding fsl_ssi_is_ac97(ssi_private)) {
Is the newbinding necessary? I thought only the original PowerPC device
trees were the only one that have the old binding, and they never supported
AC97.
If there isn't going to be new platforms added with old bindings then this
won't be needed - I'll remove it.
Best regards,
Maciej Szmigiero
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RE: [v2,8/9] fsl/fman: Add FMan Port Support
Hi Paul,
All those exported functions are used by DPAA ETH driver, which was submitted
by Bucur Madalin (only fm_port_get_buffer_time_stamp() is not used currently,
I'll remove it).
Regards,
Igal Liberman.
-Original Message-
From: Paul Bolle [mailto:pebo...@tiscali.nl]
Sent: Friday, June 26, 2015 2:29 AM
To: Liberman Igal-B31950; net...@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org; Wood Scott-B07421; Bucur Madalin-
Cristian-B32716
Subject: Re: [v2,8/9] fsl/fman: Add FMan Port Support
On Wed, 2015-06-24 at 22:37 +0300, igal.liber...@freescale.com wrote:
--- a/drivers/net/ethernet/freescale/fman/fm_drv.c
+++ b/drivers/net/ethernet/freescale/fman/fm_drv.c
+struct fm_port_t *fm_port_drv_handle(const struct fm_port_drv_t
+*port) {
+ return port-fm_port;
+}
+EXPORT_SYMBOL(fm_port_drv_handle);
I couldn't find any users of this function.
+void fm_port_get_buff_layout_ext_params(struct fm_port_drv_t *port,
+ struct fm_port_params *params)
(Evolution 3.16 is a piece of ...).
+{
+ params-data_align = 0;
+}
+EXPORT_SYMBOL(fm_port_get_buff_layout_ext_params);
Ditto.
+int fm_get_tx_port_channel(struct fm_port_drv_t *port) {
+ return port-tx_ch;
+}
+EXPORT_SYMBOL(fm_get_tx_port_channel);
Ditto.
--- /dev/null
+++ b/drivers/net/ethernet/freescale/fman/fm_port_drv.c
+void fm_set_rx_port_params(struct fm_port_drv_t *port,
+ struct fm_port_params *params)
+{
+ [...]
+}
+EXPORT_SYMBOL(fm_set_rx_port_params);
Ditto.
(If you hear about my arrest for randomly attacking innocent people:
blame evolution 3.16!)
+void fm_set_tx_port_params(struct fm_port_drv_t *port,
+ struct fm_port_params *params)
+{
+ [...]
+}
+EXPORT_SYMBOL(fm_set_tx_port_params);
Ditto.
--- /dev/null
+++ b/drivers/net/ethernet/freescale/fman/port/fm_port.c
+u64 *fm_port_get_buffer_time_stamp(const struct fm_port_t
*p_fm_port,
+ char *p_data)
+{
+ [...]
+}
+EXPORT_SYMBOL(fm_port_get_buffer_time_stamp);
Ditto.
+int fm_port_disable(struct fm_port_t *p_fm_port) {
+ [...]
+}
+EXPORT_SYMBOL(fm_port_disable);
This exports a function that I think is only used inside this file.
+int fm_port_enable(struct fm_port_t *p_fm_port) {
+ [...]
+}
+EXPORT_SYMBOL(fm_port_enable);
And here I could again find no users of this function.
Thanks,
Paul Bolle
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Re: [v2,8/9] fsl/fman: Add FMan Port Support
Why are these two parts being submitted separately? Worse, the CC list seems
to be different for each part as I'm not seeing the DPAA ETH driver.
-Scott
On Sun, 2015-06-28 at 03:06 -0500, Liberman Igal-B31950 wrote:
Hi Paul,
All those exported functions are used by DPAA ETH driver, which was
submitted by Bucur Madalin (only fm_port_get_buffer_time_stamp() is not
used currently, I'll remove it).
Regards,
Igal Liberman.
-Original Message-
From: Paul Bolle [mailto:pebo...@tiscali.nl]
Sent: Friday, June 26, 2015 2:29 AM
To: Liberman Igal-B31950; net...@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org; Wood Scott-B07421; Bucur Madalin-
Cristian-B32716
Subject: Re: [v2,8/9] fsl/fman: Add FMan Port Support
On Wed, 2015-06-24 at 22:37 +0300, igal.liberman@freescale.comwrote:
--- a/drivers/net/ethernet/freescale/fman/fm_drv.c
+++ b/drivers/net/ethernet/freescale/fman/fm_drv.c
+struct fm_port_t *fm_port_drv_handle(const struct fm_port_drv_t
+*port) {
+ return port-fm_port;
+}
+EXPORT_SYMBOL(fm_port_drv_handle);
I couldn't find any users of this function.
+void fm_port_get_buff_layout_ext_params(struct fm_port_drv_t *port,
+struct fm_port_params *params)
(Evolution 3.16 is a piece of ...).
+{
+ params-data_align = 0;
+}
+EXPORT_SYMBOL(fm_port_get_buff_layout_ext_params);
Ditto.
+int fm_get_tx_port_channel(struct fm_port_drv_t *port) {
+ return port-tx_ch;
+}
+EXPORT_SYMBOL(fm_get_tx_port_channel);
Ditto.
--- /dev/null
+++ b/drivers/net/ethernet/freescale/fman/fm_port_drv.c
+void fm_set_rx_port_params(struct fm_port_drv_t *port,
+struct fm_port_params *params)
+{
+ [...]
+}
+EXPORT_SYMBOL(fm_set_rx_port_params);
Ditto.
(If you hear about my arrest for randomly attacking innocent people:
blame evolution 3.16!)
+void fm_set_tx_port_params(struct fm_port_drv_t *port,
+struct fm_port_params *params)
+{
+ [...]
+}
+EXPORT_SYMBOL(fm_set_tx_port_params);
Ditto.
--- /dev/null
+++ b/drivers/net/ethernet/freescale/fman/port/fm_port.c
+u64 *fm_port_get_buffer_time_stamp(const struct fm_port_t
*p_fm_port,
+char *p_data)
+{
+ [...]
+}
+EXPORT_SYMBOL(fm_port_get_buffer_time_stamp);
Ditto.
+int fm_port_disable(struct fm_port_t *p_fm_port) {
+ [...]
+}
+EXPORT_SYMBOL(fm_port_disable);
This exports a function that I think is only used inside this file.
+int fm_port_enable(struct fm_port_t *p_fm_port) {
+ [...]
+}
+EXPORT_SYMBOL(fm_port_enable);
And here I could again find no users of this function.
Thanks,
Paul Bolle
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Re: [PATCH] ASoC: fsl_ssi: fix AC'97 mode
Maciej S. Szmigiero wrote: If there isn't going to be new platforms added with old bindings then this won't be needed - I'll remove it. I would love it if someone would port those original device trees to the new binding, so that we can get rid of the old one. But we should definitely not allow new device trees with the old binding. ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
[PATCH 1/6] ASoC: fsl_ssi: enable IPG clock during AC'97 reg access
IPG clock have to be enabled during AC'97 CODEC register
access in fsl_ssi driver.
Signed-off-by: Maciej Szmigiero m...@maciej.szmigiero.name
---
sound/soc/fsl/fsl_ssi.c | 19 +++
1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index c7647e0..9c46c7d 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -1127,10 +1127,17 @@ static void fsl_ssi_ac97_write(struct snd_ac97 *ac97,
unsigned short reg,
struct regmap *regs = fsl_ac97_data-regs;
unsigned int lreg;
unsigned int lval;
+ int ret;
if (reg 0x7f)
return;
+ ret = clk_prepare_enable(fsl_ac97_data-clk);
+ if (ret) {
+ pr_err(ac97 write clk_prepare_enable failed: %d\n,
+ ret);
+ return;
+ }
lreg = reg 12;
regmap_write(regs, CCSR_SSI_SACADD, lreg);
@@ -1141,6 +1148,8 @@ static void fsl_ssi_ac97_write(struct snd_ac97 *ac97,
unsigned short reg,
regmap_update_bits(regs, CCSR_SSI_SACNT, CCSR_SSI_SACNT_RDWR_MASK,
CCSR_SSI_SACNT_WR);
udelay(100);
+
+ clk_disable_unprepare(fsl_ac97_data-clk);
}
static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97,
@@ -1151,6 +1160,14 @@ static unsigned short fsl_ssi_ac97_read(struct snd_ac97
*ac97,
unsigned short val = -1;
u32 reg_val;
unsigned int lreg;
+ int ret;
+
+ ret = clk_prepare_enable(fsl_ac97_data-clk);
+ if (ret) {
+ pr_err(ac97 read clk_prepare_enable failed: %d\n,
+ ret);
+ return -1;
+ }
lreg = (reg 0x7f) 12;
regmap_write(regs, CCSR_SSI_SACADD, lreg);
@@ -1162,6 +1179,8 @@ static unsigned short fsl_ssi_ac97_read(struct snd_ac97
*ac97,
regmap_read(regs, CCSR_SSI_SACDAT, reg_val);
val = (reg_val 4) 0x;
+ clk_disable_unprepare(fsl_ac97_data-clk);
+
return val;
}
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[PATCH 3/6] ASoC: fsl_ssi: enable AC'97 asymmetric rates
AC'97 bus can support asymmetric playback/capture rates
so enable them in this case in fsl_ssi driver.
Signed-off-by: Maciej Szmigiero m...@maciej.szmigiero.name
---
sound/soc/fsl/fsl_ssi.c |4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 2ce9e1d..f3034b9 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -1377,7 +1377,9 @@ static int fsl_ssi_probe(struct platform_device *pdev)
/* Are the RX and the TX clocks locked? */
if (!of_find_property(np, fsl,ssi-asynchronous, NULL)) {
- ssi_private-cpu_dai_drv.symmetric_rates = 1;
+ if (!fsl_ssi_is_ac97(ssi_private))
+ ssi_private-cpu_dai_drv.symmetric_rates = 1;
+
ssi_private-cpu_dai_drv.symmetric_channels = 1;
ssi_private-cpu_dai_drv.symmetric_samplebits = 1;
}
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[PATCH 2/6] ASoC: fsl_ssi: AC'97 DAI driver needs probe method too
AC'97 DAI driver struct need the same probe method as
I2S one to setup DMA params in fsl_ssi driver.
Signed-off-by: Maciej Szmigiero m...@maciej.szmigiero.name
---
sound/soc/fsl/fsl_ssi.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 9c46c7d..2ce9e1d 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -1101,6 +1101,7 @@ static const struct snd_soc_component_driver
fsl_ssi_component = {
static struct snd_soc_dai_driver fsl_ssi_ac97_dai = {
.bus_control = true,
+ .probe = fsl_ssi_dai_probe,
.playback = {
.stream_name = AC97 Playback,
.channels_min = 2,
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Re: [PATCH 3/6] ASoC: fsl_ssi: enable AC'97 asymmetric rates
Maciej S. Szmigiero wrote:
/* Are the RX and the TX clocks locked? */
if (!of_find_property(np, fsl,ssi-asynchronous, NULL)) {
- ssi_private-cpu_dai_drv.symmetric_rates = 1;
+ if (!fsl_ssi_is_ac97(ssi_private))
+ ssi_private-cpu_dai_drv.symmetric_rates = 1;
+
Is this necessary? Why not just add fsl,ssi-asynchronous to the AC97
device tree node?
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[PATCH 6/6] ASoC: fsl_ssi: adjust set DAI format in AC'97 mode
Adjust set DAI format function in fsl_ssi driver so it
doesn't fail and clears RXDIR in AC'97 mode.
Signed-off-by: Maciej Szmigiero m...@maciej.szmigiero.name
---
sound/soc/fsl/fsl_ssi.c |8 +---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index e79dc16..d043c7c 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -900,14 +900,16 @@ static int _fsl_ssi_set_dai_fmt(struct device *dev,
scr = ~CCSR_SSI_SCR_SYS_CLK_EN;
break;
default:
- return -EINVAL;
+ if (!fsl_ssi_is_ac97(ssi_private))
+ return -EINVAL;
}
stcr |= strcr;
srcr |= strcr;
- if (ssi_private-cpu_dai_drv.symmetric_rates) {
- /* Need to clear RXDIR when using SYNC mode */
+ if (ssi_private-cpu_dai_drv.symmetric_rates
+ || fsl_ssi_is_ac97(ssi_private)) {
+ /* Need to clear RXDIR when using SYNC or AC97 mode */
srcr = ~CCSR_SSI_SRCR_RXDIR;
scr |= CCSR_SSI_SCR_SYN;
}
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[PATCH 5/6] ASoC: fsl_ssi: instantiate AC'97 CODEC
Instantiate AC'97 CODEC in fsl_ssi driver AC'97 mode.
Signed-off-by: Maciej Szmigiero m...@maciej.szmigiero.name
---
sound/soc/fsl/fsl_ssi.c | 21 +
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 0b4fcd9..e79dc16 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -1460,6 +1460,27 @@ done:
_fsl_ssi_set_dai_fmt(pdev-dev, ssi_private,
ssi_private-dai_fmt);
+ if (fsl_ssi_is_ac97(ssi_private)) {
+ u32 ssi_idx;
+
+ ret = of_property_read_u32(np, cell-index, ssi_idx);
+ if (ret) {
+ dev_err(pdev-dev, cannot get SSI index property\n);
+ goto error_sound_card;
+ }
+
+ ssi_private-pdev =
+ platform_device_register_data(NULL,
+ ac97-codec, ssi_idx, NULL, 0);
+ if (IS_ERR(ssi_private-pdev)) {
+ ret = PTR_ERR(ssi_private-pdev);
+ dev_err(pdev-dev,
+ failed to register AC97 codec platform: %d\n,
+ ret);
+ goto error_sound_card;
+ }
+ }
+
return 0;
error_sound_card:
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[PATCH 4/6] ASoC: fsl_ssi: add AC'97 ops setting check and cleanup
Check whether setting AC'97 ops succeeded and clean them
on removal so the fsl_ssi driver can be reloaded.
Signed-off-by: Maciej Szmigiero m...@maciej.szmigiero.name
---
sound/soc/fsl/fsl_ssi.c |9 -
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index f3034b9..0b4fcd9 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -1340,7 +1340,11 @@ static int fsl_ssi_probe(struct platform_device *pdev)
fsl_ac97_data = ssi_private;
- snd_soc_set_ac97_ops_of_reset(fsl_ssi_ac97_ops, pdev);
+ ret = snd_soc_set_ac97_ops_of_reset(fsl_ssi_ac97_ops, pdev);
+ if (ret) {
+ dev_err(pdev-dev, could not set AC'97 ops\n);
+ return ret;
+ }
} else {
/* Initialize this copy of the CPU DAI driver structure */
memcpy(ssi_private-cpu_dai_drv, fsl_ssi_dai_template,
@@ -1480,6 +1484,9 @@ static int fsl_ssi_remove(struct platform_device *pdev)
if (ssi_private-soc-imx)
fsl_ssi_imx_clean(pdev, ssi_private);
+ if (fsl_ssi_is_ac97(ssi_private))
+ snd_soc_set_ac97_ops(NULL);
+
return 0;
}
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Re: [PATCH 3/6] ASoC: fsl_ssi: enable AC'97 asymmetric rates
W dniu 28.06.2015 16:01, Timur Tabi pisze:
Maciej S. Szmigiero wrote:
/* Are the RX and the TX clocks locked? */
if (!of_find_property(np, fsl,ssi-asynchronous, NULL)) {
-ssi_private-cpu_dai_drv.symmetric_rates = 1;
+if (!fsl_ssi_is_ac97(ssi_private))
+ssi_private-cpu_dai_drv.symmetric_rates = 1;
+
Is this necessary? Why not just add fsl,ssi-asynchronous to the AC97 device
tree node?
Because in the AC'97 mode the driver supports only one channel config and one
sample format
anyway the remaining settings controlled by this property don't do anything.
Since it should be safe to enable asymmetric rates with any AC'97 CODEC I think
it is good
to do it in driver than to add fsl,ssi-asynchronous to every AC'97 DT node.
Also the description of this property in fsl,ssi.txt looks like that it only
makes sense in
non-AC'97 mode.
Best regards,
Maciej Szmigiero
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Re: [v2,9/9] fsl/fman: Add FMan MAC driver
On Thu, 2015-06-25 at 21:25 -0500, Scott Wood wrote: On Fri, 2015-06-26 at 12:21 +1000, Michael Ellerman wrote: On Thu, 2015-06-25 at 19:59 -0500, Scott Wood wrote: On Fri, 2015-06-26 at 01:06 +0200, Paul Bolle wrote: (Evolution 3.16 is basically unbearable for replying to patches. Anyone else running into this?) If you mean the crazy lag when selecting moderate-to-large amounts of text (for snipping), yes. I recommend the external editor plugin with vim. I tried the external editor plugin (not with vim) and it failed to bring the externally made edits back into the evolution compose window. It then started spastically respawning the external editor without my doing anything. I guess it only works with vim ;) cheers ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
[RESEND PATCH] powerpc/powernv: Fix vma page prot flags in opal-prd driver
opal-prd driver will mmap() firmware code/data area as private
mapping to prd user space daemon. Write to this page will
trigger COW faults. The new COW pages are normal kernel RAM
pages accounted by the kernel and are not special.
vma-vm_page_prot value will be used at page fault time
for the new COW pages, while pgprot_t value passed in
remap_pfn_range() is used for the initial page table entry.
Hence:
* Do not add _PAGE_SPECIAL in vma, but only for remap_pfn_range()
* Also remap_pfn_range() will add the _PAGE_SPECIAL flag using
pte_mkspecial() call, hence no need to specify in the driver
This fix resolves the page accounting warning shown below:
BUG: Bad rss-counter state mm:c007d34ac600 idx:1 val:19
The above warning is triggered since _PAGE_SPECIAL was incorrectly
being set for the normal kernel COW pages.
Signed-off-by: Vaidyanathan Srinivasan sva...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/opal-prd.c |9 -
1 file changed, 4 insertions(+), 5 deletions(-)
Resending the patch for inclusion until we have a working solution
without PAGE_SPECIAL.
Kindly queue this patch to fix the mmap issue in opal-prd driver.
The next version/fix with vm_insert_page() will replace this code.
There is no API change on the driver side and hence no side effects of
including this fix until a better solution is available.
diff --git a/arch/powerpc/platforms/powernv/opal-prd.c
b/arch/powerpc/platforms/powernv/opal-prd.c
index 46cb3fe..4ece8e4 100644
--- a/arch/powerpc/platforms/powernv/opal-prd.c
+++ b/arch/powerpc/platforms/powernv/opal-prd.c
@@ -112,6 +112,7 @@ static int opal_prd_open(struct inode *inode, struct file
*file)
static int opal_prd_mmap(struct file *file, struct vm_area_struct *vma)
{
size_t addr, size;
+ pgprot_t page_prot;
int rc;
pr_devel(opal_prd_mmap(0x%016lx, 0x%016lx, 0x%lx, 0x%lx)\n,
@@ -125,13 +126,11 @@ static int opal_prd_mmap(struct file *file, struct
vm_area_struct *vma)
if (!opal_prd_range_is_valid(addr, size))
return -EINVAL;
- vma-vm_page_prot = __pgprot(pgprot_val(phys_mem_access_prot(file,
- vma-vm_pgoff,
-size, vma-vm_page_prot))
- | _PAGE_SPECIAL);
+ page_prot = phys_mem_access_prot(file, vma-vm_pgoff,
+size, vma-vm_page_prot);
rc = remap_pfn_range(vma, vma-vm_start, vma-vm_pgoff, size,
- vma-vm_page_prot);
+ page_prot);
return rc;
}
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Re: [RESEND PATCH] powerpc/powernv: Fix vma page prot flags in opal-prd driver
Hi Vaidy, opal-prd driver will mmap() firmware code/data area as private mapping to prd user space daemon. Write to this page will trigger COW faults. The new COW pages are normal kernel RAM pages accounted by the kernel and are not special. vma-vm_page_prot value will be used at page fault time for the new COW pages, while pgprot_t value passed in remap_pfn_range() is used for the initial page table entry. Hence: * Do not add _PAGE_SPECIAL in vma, but only for remap_pfn_range() * Also remap_pfn_range() will add the _PAGE_SPECIAL flag using pte_mkspecial() call, hence no need to specify in the driver This fix resolves the page accounting warning shown below: BUG: Bad rss-counter state mm:c007d34ac600 idx:1 val:19 The above warning is triggered since _PAGE_SPECIAL was incorrectly being set for the normal kernel COW pages. Signed-off-by: Vaidyanathan Srinivasan sva...@linux.vnet.ibm.com Acked-by: Jeremy Kerr j...@ozlabs.org Cheers, Jeremy ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
