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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* UAC3 Power Domain state management functions
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*/
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#include <linux/slab.h>
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#include <linux/usb.h>
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#include <linux/usb/audio.h>
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#include <linux/usb/audio-v2.h>
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#include <linux/usb/audio-v3.h>
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#include "usbaudio.h"
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#include "helper.h"
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#include "power.h"
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struct snd_usb_power_domain *
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snd_usb_find_power_domain(struct usb_host_interface *ctrl_iface,
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unsigned char id)
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{
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struct snd_usb_power_domain *pd;
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void *p;
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pd = kzalloc_obj(*pd);
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if (!pd)
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return NULL;
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p = NULL;
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while ((p = snd_usb_find_csint_desc(ctrl_iface->extra,
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ctrl_iface->extralen,
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p, UAC3_POWER_DOMAIN)) != NULL) {
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struct uac3_power_domain_descriptor *pd_desc = p;
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int i;
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if (!snd_usb_validate_audio_desc(p, UAC_VERSION_3))
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continue;
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for (i = 0; i < pd_desc->bNrEntities; i++) {
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if (pd_desc->baEntityID[i] == id) {
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pd->pd_id = pd_desc->bPowerDomainID;
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pd->pd_d1d0_rec =
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le16_to_cpu(pd_desc->waRecoveryTime1);
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pd->pd_d2d0_rec =
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le16_to_cpu(pd_desc->waRecoveryTime2);
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pd->ctrl_iface = ctrl_iface;
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return pd;
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}
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}
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}
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kfree(pd);
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return NULL;
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}
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int snd_usb_power_domain_set(struct snd_usb_audio *chip,
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struct snd_usb_power_domain *pd,
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unsigned char state)
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{
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struct usb_device *dev = chip->dev;
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unsigned char current_state;
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int err, idx;
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idx = snd_usb_ctrl_intf(pd->ctrl_iface) | (pd->pd_id << 8);
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err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0),
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UAC2_CS_CUR,
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USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
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UAC3_AC_POWER_DOMAIN_CONTROL << 8, idx,
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¤t_state, sizeof(current_state));
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if (err < 0) {
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dev_err(&dev->dev, "Can't get UAC3 power state for id %d\n",
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pd->pd_id);
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return err;
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}
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if (current_state == state) {
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dev_dbg(&dev->dev, "UAC3 power domain id %d already in state %d\n",
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pd->pd_id, state);
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return 0;
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}
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err = snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), UAC2_CS_CUR,
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USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
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UAC3_AC_POWER_DOMAIN_CONTROL << 8, idx,
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&state, sizeof(state));
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if (err < 0) {
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dev_err(&dev->dev, "Can't set UAC3 power state to %d for id %d\n",
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state, pd->pd_id);
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return err;
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}
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if (state == UAC3_PD_STATE_D0) {
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switch (current_state) {
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case UAC3_PD_STATE_D2:
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udelay(pd->pd_d2d0_rec * 50);
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break;
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case UAC3_PD_STATE_D1:
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udelay(pd->pd_d1d0_rec * 50);
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break;
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default:
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return -EINVAL;
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}
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}
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dev_dbg(&dev->dev, "UAC3 power domain id %d change to state %d\n",
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pd->pd_id, state);
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return 0;
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}
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