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From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Lubomir Rintel <lkundrak@v3.sk>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.14 24/61] pxa168fb: prepare the clock
Date: Tue, 16 Oct 2018 00:13:26 -0400	[thread overview]
Message-ID: <20181016041403.135678-24-sashal@kernel.org> (raw)
In-Reply-To: <20181016041403.135678-1-sashal@kernel.org>

From: Lubomir Rintel <lkundrak@v3.sk>

[ Upstream commit d85536cde91fcfed6fb8d983783bd2b92c843939 ]

Add missing prepare/unprepare operations for fbi->clk,
this fixes following kernel warning:

  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:874 clk_core_enable+0x2c/0x1b0
  Enabling unprepared disp0_clk
  Modules linked in:
  CPU: 0 PID: 1 Comm: swapper Not tainted 4.18.0-rc8-00032-g02b43ddd4f21-dirty #25
  Hardware name: Marvell MMP2 (Device Tree Support)
  [<c010f7cc>] (unwind_backtrace) from [<c010cc6c>] (show_stack+0x10/0x14)
  [<c010cc6c>] (show_stack) from [<c011dab4>] (__warn+0xd8/0xf0)
  [<c011dab4>] (__warn) from [<c011db10>] (warn_slowpath_fmt+0x44/0x6c)
  [<c011db10>] (warn_slowpath_fmt) from [<c043898c>] (clk_core_enable+0x2c/0x1b0)
  [<c043898c>] (clk_core_enable) from [<c0439ec8>] (clk_core_enable_lock+0x18/0x2c)
  [<c0439ec8>] (clk_core_enable_lock) from [<c0436698>] (pxa168fb_probe+0x464/0x6ac)
  [<c0436698>] (pxa168fb_probe) from [<c04779a0>] (platform_drv_probe+0x48/0x94)
  [<c04779a0>] (platform_drv_probe) from [<c0475bec>] (driver_probe_device+0x328/0x470)
  [<c0475bec>] (driver_probe_device) from [<c0475de4>] (__driver_attach+0xb0/0x124)
  [<c0475de4>] (__driver_attach) from [<c0473c38>] (bus_for_each_dev+0x64/0xa0)
  [<c0473c38>] (bus_for_each_dev) from [<c0474ee0>] (bus_add_driver+0x1b8/0x230)
  [<c0474ee0>] (bus_add_driver) from [<c0476a20>] (driver_register+0xac/0xf0)
  [<c0476a20>] (driver_register) from [<c0102dd4>] (do_one_initcall+0xb8/0x1f0)
  [<c0102dd4>] (do_one_initcall) from [<c0b010a0>] (kernel_init_freeable+0x294/0x2e0)
  [<c0b010a0>] (kernel_init_freeable) from [<c07e9eb8>] (kernel_init+0x8/0x10c)
  [<c07e9eb8>] (kernel_init) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
  Exception stack(0xd008bfb0 to 0xd008bff8)
  bfa0:                                     00000000 00000000 00000000 00000000
  bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
  bfe0: 00000000 00000000 00000000 00000000 00000013 00000000
  ---[ end trace c0af40f9e2ed7cb4 ]---

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
[b.zolnierkie: enhance patch description a bit]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/fbdev/pxa168fb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/fbdev/pxa168fb.c b/drivers/video/fbdev/pxa168fb.c
index def3a501acd6..d059d04c63ac 100644
--- a/drivers/video/fbdev/pxa168fb.c
+++ b/drivers/video/fbdev/pxa168fb.c
@@ -712,7 +712,7 @@ static int pxa168fb_probe(struct platform_device *pdev)
 	/*
 	 * enable controller clock
 	 */
-	clk_enable(fbi->clk);
+	clk_prepare_enable(fbi->clk);
 
 	pxa168fb_set_par(info);
 
@@ -767,7 +767,7 @@ static int pxa168fb_probe(struct platform_device *pdev)
 failed_free_cmap:
 	fb_dealloc_cmap(&info->cmap);
 failed_free_clk:
-	clk_disable(fbi->clk);
+	clk_disable_unprepare(fbi->clk);
 failed_free_fbmem:
 	dma_free_coherent(fbi->dev, info->fix.smem_len,
 			info->screen_base, fbi->fb_start_dma);
@@ -807,7 +807,7 @@ static int pxa168fb_remove(struct platform_device *pdev)
 	dma_free_wc(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
 		    info->screen_base, info->fix.smem_start);
 
-	clk_disable(fbi->clk);
+	clk_disable_unprepare(fbi->clk);
 
 	framebuffer_release(info);
 
-- 
2.17.1


  parent reply	other threads:[~2018-10-16  4:14 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-16  4:13 [PATCH AUTOSEL 4.14 01/61] xfrm: Validate address prefix lengths in the xfrm selector Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 02/61] xfrm6: call kfree_skb when skb is toobig Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 03/61] xfrm: reset transport header back to network header after all input transforms ahave been applied Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 04/61] xfrm: reset crypto_done when iterating over multiple input xfrms Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 05/61] mac80211: Always report TX status Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 06/61] cfg80211: reg: Init wiphy_idx in regulatory_hint_core() Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 07/61] mac80211: fix pending queue hang due to TX_DROP Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 08/61] cfg80211: Address some corner cases in scan result channel updating Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 09/61] mac80211: TDLS: fix skb queue/priority assignment Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 10/61] mac80211: fix TX status reporting for ieee80211s Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 11/61] xfrm: Fix NULL pointer dereference when skb_dst_force clears the dst_entry Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 12/61] ARM: 8799/1: mm: fix pci_ioremap_io() offset check Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 13/61] xfrm: validate template mode Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 14/61] netfilter: bridge: Don't sabotage nf_hook calls from an l3mdev Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 15/61] arm64: hugetlb: Fix handling of young ptes Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 16/61] ARM: dts: BCM63xx: Fix incorrect interrupt specifiers Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 17/61] net: macb: Clean 64b dma addresses if they are not detected Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 18/61] net: hns: fix for unmapping problem when SMMU is on Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 19/61] soc: fsl: qbman: qman: avoid allocating from non existing gen_pool Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 20/61] soc: fsl: qe: Fix copy/paste bug in ucc_get_tdm_sync_shift() Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 21/61] nl80211: Fix possible Spectre-v1 for NL80211_TXRATE_HT Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 22/61] mac80211_hwsim: do not omit multicast announce of first added radio Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 23/61] Bluetooth: SMP: fix crash in unpairing Sasha Levin
2018-10-16  4:13 ` Sasha Levin [this message]
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 25/61] qed: Avoid implicit enum conversion in qed_set_tunn_cls_info Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 26/61] qed: Fix mask parameter in qed_vf_prep_tunn_req_tlv Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 27/61] qed: Avoid implicit enum conversion in qed_roce_mode_to_flavor Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 28/61] bonding: pass link-local packets to bonding master also Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 29/61] bonding: avoid possible dead-lock Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 30/61] qed: Avoid constant logical operation warning in qed_vf_pf_acquire Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 31/61] qed: Avoid implicit enum conversion in qed_iwarp_parse_rx_pkt Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 32/61] bnxt_en: Fix TX timeout during netpoll Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 33/61] nl80211: Fix possible Spectre-v1 for CQM RSSI thresholds Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 34/61] asix: Check for supported Wake-on-LAN modes Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 35/61] ax88179_178a: " Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 36/61] lan78xx: " Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 37/61] sr9800: " Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 38/61] r8152: Check for supported Wake-on-LAN Modes Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 39/61] smsc75xx: Check for Wake-on-LAN modes Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 40/61] smsc95xx: " Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 41/61] qlcnic: fix Tx descriptor corruption on 82xx devices Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 42/61] i2c: i2c-scmi: fix for i2c_smbus_write_block_data Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 43/61] cfg80211: fix use-after-free in reg_process_hint() Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 44/61] net/mlx5: E-Switch, Fix out of bound access when setting vport rate Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 45/61] net/mlx5e: Set vlan masks for all offloaded TC rules Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 46/61] perf/core: Fix perf_pmu_unregister() locking Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 47/61] perf/ring_buffer: Prevent concurent ring buffer access Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 48/61] perf/x86/intel/uncore: Fix PCI BDF address of M3UPI on SKX Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 49/61] perf/x86/amd/uncore: Set ThreadMask and SliceMask for L3 Cache perf events Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 50/61] net: fec: fix rare tx timeout Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 51/61] declance: Fix continuation with the adapter identification message Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 52/61] nfp: avoid soft lockups under control message storm Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 53/61] bonding: fix warning message Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 54/61] net: qualcomm: rmnet: Skip processing loopback packets Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 55/61] locking/ww_mutex: Fix runtime warning in the WW mutex selftest Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 56/61] net/usb: cancel pending work when unbinding smsc75xx Sasha Levin
2018-10-16  4:13 ` [PATCH AUTOSEL 4.14 57/61] be2net: don't flip hw_features when VXLANs are added/deleted Sasha Levin
2018-10-16  4:14 ` [PATCH AUTOSEL 4.14 58/61] net: cxgb3_main: fix a missing-check bug Sasha Levin
2018-10-16  4:14 ` [PATCH AUTOSEL 4.14 59/61] yam: " Sasha Levin
2018-10-16  4:14 ` [PATCH AUTOSEL 4.14 60/61] ocfs2: fix crash in ocfs2_duplicate_clusters_by_page() Sasha Levin
2018-10-16  4:14 ` [PATCH AUTOSEL 4.14 61/61] mm/vmstat.c: fix outdated vmstat_text Sasha Levin

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