A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 03:01:39 -04:00
Code Issues Projects Releases Packages Wiki Activity

arm-soc: clock driver changes

Browse source 
The new clock subsystem was merged in linux-3.4 without any users, this
 now moves the first three platforms over to it: imx, mxs and spear.
 
 The series also contains the changes for the clock subsystem itself,
 since Mike preferred to have it together with the platforms that require
 these changes, in order to avoid interdependencies and conflicts.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJPuexPAAoJEIwa5zzehBx3YBsP/0nFhXjb5t1PdLfFzGKtcZVB
 j4zXWXMHQ1fA7wIfEpZF3Nnco6MQkufF5wJPoPdn1+wmkzCn3D6IwNVWVtW4U5i9
 VGyShSbgusAAYXUe/9yYj8eN+bbRQSvdN4eWYWU6+rRXShGZ5dZZmp+IPNl54dnW
 6F8uCnHX0cnIMCpGqV+41zZgZ/4wL2k9gdqu0LO6pi07o4tGd0Z4gcySgUFAnn1R
 kofNHueYIP4UgOg8DREoBzVKlpRqMou3S2kSZUfMeb3Q9ryF7UIvaGqIILyi7PKL
 kWd3nptg0EPavfL21SwXHiGpnDpB/Gj/F70kcPLus5RYujB24C9bvBmc26z68NZx
 Sz9mbElkkIU5duZsl1nxBWJ8IZ/tSWdtmC2xQMznmV7gHyGgVwr4j47f4Uv5sBvM
 14JHDO7mqN6E6FnTFZu/oPAN5pDjgL+TVNK5BU6Wkq0zitrA6eyKDqCvBCqkO6Nn
 tNzOuyRDzMOwM7HzqXhxqtzJWXylO1Mldc4bM8X4Cocf4pnLna/X6uP6dgE6A+JY
 azVYx4I/0NdEPerDTzIcEhBDgZeBVROhUQr+kHxc4rf6WzUUbu/wEo1UKXWV66oW
 1jb1yAFFWqYjkQuQc2PD4JSx35sFJaoSaoneRtmzBzRDfzSr5KjKj1E0e1skyMFq
 7ZVLCqZD0cB9DhmMDkWP
 =rwFF
 -----END PGP SIGNATURE-----

Merge tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc clock driver changes from Olof Johansson:
 "The new clock subsystem was merged in linux-3.4 without any users,
  this now moves the first three platforms over to it: imx, mxs and
  spear.

  The series also contains the changes for the clock subsystem itself,
  since Mike preferred to have it together with the platforms that
  require these changes, in order to avoid interdependencies and
  conflicts."

Fix up trivial conflicts in arch/arm/mach-kirkwood/common.c (code
removed in one branch, added OF support in another) and
drivers/dma/imx-sdma.c (independent changes next to each other).

* tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits)
  clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate().
  clk: Provide dummy clk_unregister()
  SPEAr: Update defconfigs
  SPEAr: Add SMI NOR partition info in dts files
  SPEAr: Switch to common clock framework
  SPEAr: Call clk_prepare() before calling clk_enable
  SPEAr: clk: Add General Purpose Timer Synthesizer clock
  SPEAr: clk: Add Fractional Synthesizer clock
  SPEAr: clk: Add Auxiliary Synthesizer clock
  SPEAr: clk: Add VCO-PLL Synthesizer clock
  SPEAr: Add DT bindings for SPEAr's timer
  ARM i.MX: remove now unused clock files
  ARM: i.MX6: implement clocks using common clock framework
  ARM i.MX35: implement clocks using common clock framework
  ARM i.MX5: implement clocks using common clock framework
  ARM: Kirkwood: Replace clock gating
  ARM: Orion: Audio: Add clk/clkdev support
  ARM: Orion: PCIE: Add support for clk
  ARM: Orion: XOR: Add support for clk
  ARM: Orion: CESA: Add support for clk
  ...
This commit is contained in:
Linus Torvalds 2012-05-26 12:42:29 -07:00
commit 2795343705
151 changed files with 8310 additions and 14193 deletions
Download patch file Download diff file Expand all files Collapse all files

35
drivers/net/ethernet/freescale/fec.c
View file

@ -207,7 +207,8 @@ struct fec_enet_private {
struct net_device *netdev;
struct clk *clk;
struct clk *clk_ipg;
struct clk *clk_ahb;
/* The saved address of a sent-in-place packet/buffer, for skfree(). */
unsigned char *tx_bounce[TX_RING_SIZE];
@ -1065,7 +1066,7 @@ static int fec_enet_mii_init(struct platform_device *pdev)
* Reference Manual has an error on this, and gets fixed on i.MX6Q
* document.
*/
fep->phy_speed = DIV_ROUND_UP(clk_get_rate(fep->clk), 5000000);
fep->phy_speed = DIV_ROUND_UP(clk_get_rate(fep->clk_ahb), 5000000);
if (id_entry->driver_data & FEC_QUIRK_ENET_MAC)
fep->phy_speed--;
fep->phy_speed <<= 1;
@ -1618,12 +1619,20 @@ fec_probe(struct platform_device *pdev)
goto failed_pin;
}
fep->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(fep->clk)) {
ret = PTR_ERR(fep->clk);
fep->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
if (IS_ERR(fep->clk_ipg)) {
ret = PTR_ERR(fep->clk_ipg);
goto failed_clk;
}
clk_prepare_enable(fep->clk);
fep->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
if (IS_ERR(fep->clk_ahb)) {
ret = PTR_ERR(fep->clk_ahb);
goto failed_clk;
}
clk_prepare_enable(fep->clk_ahb);
clk_prepare_enable(fep->clk_ipg);
ret = fec_enet_init(ndev);
if (ret)
@ -1646,8 +1655,8 @@ failed_register:
fec_enet_mii_remove(fep);
failed_mii_init:
failed_init:
clk_disable_unprepare(fep->clk);
clk_put(fep->clk);
clk_disable_unprepare(fep->clk_ahb);
clk_disable_unprepare(fep->clk_ipg);
failed_pin:
failed_clk:
for (i = 0; i < FEC_IRQ_NUM; i++) {
@ -1680,8 +1689,8 @@ fec_drv_remove(struct platform_device *pdev)
if (irq > 0)
free_irq(irq, ndev);
}
clk_disable_unprepare(fep->clk);
clk_put(fep->clk);
clk_disable_unprepare(fep->clk_ahb);
clk_disable_unprepare(fep->clk_ipg);
iounmap(fep->hwp);
free_netdev(ndev);
@ -1705,7 +1714,8 @@ fec_suspend(struct device *dev)
fec_stop(ndev);
netif_device_detach(ndev);
}
clk_disable_unprepare(fep->clk);
clk_disable_unprepare(fep->clk_ahb);
clk_disable_unprepare(fep->clk_ipg);
return 0;
}
@ -1716,7 +1726,8 @@ fec_resume(struct device *dev)
struct net_device *ndev = dev_get_drvdata(dev);
struct fec_enet_private *fep = netdev_priv(ndev);
clk_prepare_enable(fep->clk);
clk_prepare_enable(fep->clk_ahb);
clk_prepare_enable(fep->clk_ipg);
if (netif_running(ndev)) {
fec_restart(ndev, fep->full_duplex);
netif_device_attach(ndev);

42
drivers/net/ethernet/marvell/mv643xx_eth.c
View file

@ -57,6 +57,7 @@
#include <linux/types.h>
#include <linux/inet_lro.h>
#include <linux/slab.h>
#include <linux/clk.h>
static char mv643xx_eth_driver_name[] = "mv643xx_eth";
static char mv643xx_eth_driver_version[] = "1.4";
@ -289,10 +290,10 @@ struct mv643xx_eth_shared_private {
/*
* Hardware-specific parameters.
*/
unsigned int t_clk;
int extended_rx_coal_limit;
int tx_bw_control;
int tx_csum_limit;
};
#define TX_BW_CONTROL_ABSENT 0
@ -431,6 +432,12 @@ struct mv643xx_eth_private {
int tx_desc_sram_size;
int txq_count;
struct tx_queue txq[8];
/*
* Hardware-specific parameters.
*/
struct clk *clk;
unsigned int t_clk;
};
@ -1010,7 +1017,7 @@ static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst)
int mtu;
int bucket_size;
token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000);
token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000);
if (token_rate > 1023)
token_rate = 1023;
@ -1042,7 +1049,7 @@ static void txq_set_rate(struct tx_queue *txq, int rate, int burst)
int token_rate;
int bucket_size;
token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000);
token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000);
if (token_rate > 1023)
token_rate = 1023;
@ -1309,7 +1316,7 @@ static unsigned int get_rx_coal(struct mv643xx_eth_private *mp)
temp = (val & 0x003fff00) >> 8;
temp *= 64000000;
do_div(temp, mp->shared->t_clk);
do_div(temp, mp->t_clk);
return (unsigned int)temp;
}
@ -1319,7 +1326,7 @@ static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int usec)
u64 temp;
u32 val;
temp = (u64)usec * mp->shared->t_clk;
temp = (u64)usec * mp->t_clk;
temp += 31999999;
do_div(temp, 64000000);
@ -1345,7 +1352,7 @@ static unsigned int get_tx_coal(struct mv643xx_eth_private *mp)
temp = (rdlp(mp, TX_FIFO_URGENT_THRESHOLD) & 0x3fff0) >> 4;
temp *= 64000000;
do_div(temp, mp->shared->t_clk);
do_div(temp, mp->t_clk);
return (unsigned int)temp;
}
@ -1354,7 +1361,7 @@ static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int usec)
{
u64 temp;
temp = (u64)usec * mp->shared->t_clk;
temp = (u64)usec * mp->t_clk;
temp += 31999999;
do_div(temp, 64000000);
@ -2663,10 +2670,6 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
if (dram)
mv643xx_eth_conf_mbus_windows(msp, dram);
/*
* Detect hardware parameters.
*/
msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000;
msp->tx_csum_limit = (pd != NULL && pd->tx_csum_limit) ?
pd->tx_csum_limit : 9 * 1024;
infer_hw_params(msp);
@ -2891,6 +2894,18 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
mp->dev = dev;
/*
* Get the clk rate, if there is one, otherwise use the default.
*/
mp->clk = clk_get(&pdev->dev, (pdev->id ? "1" : "0"));
if (!IS_ERR(mp->clk)) {
clk_prepare_enable(mp->clk);
mp->t_clk = clk_get_rate(mp->clk);
} else {
mp->t_clk = 133000000;
printk(KERN_WARNING "Unable to get clock");
}
set_params(mp, pd);
netif_set_real_num_tx_queues(dev, mp->txq_count);
netif_set_real_num_rx_queues(dev, mp->rxq_count);
@ -2979,6 +2994,11 @@ static int mv643xx_eth_remove(struct platform_device *pdev)
if (mp->phy != NULL)
phy_detach(mp->phy);
cancel_work_sync(&mp->tx_timeout_task);
if (!IS_ERR(mp->clk)) {
clk_disable_unprepare(mp->clk);
clk_put(mp->clk);
}
free_netdev(mp->dev);
platform_set_drvdata(pdev, NULL);