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Subject: Re: [PATCH v5 08/10] PCI: dwc: Replace lower into upper case
 characters
To:     Gustavo Pimentel <gustavo.pimentel@synopsys.com>,
        <bhelgaas@google.com>, <lorenzo.pieralisi@arm.com>,
        <Joao.Pinto@synopsys.com>, <jingoohan1@gmail.com>, <kishon@ti.com>,
        <robh+dt@kernel.org>, <mark.rutland@arm.com>
CC:     <linux-pci@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <devicetree@vger.kernel.org>
References: <cover.1523973931.git.gustavo.pimentel@synopsys.com>
 <ffebc61b2143027cbfb4914079f7c7b6a7c2bac9.1523973931.git.gustavo.pimentel@synopsys.com>
From:   Joao Pinto <Joao.Pinto@synopsys.com>
Message-ID: <6d650235-1687-ea6d-25db-1dbd52abe644@synopsys.com>
Date:   Tue, 17 Apr 2018 20:01:32 +0100
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Às 3:34 PM de 4/17/2018, Gustavo Pimentel escreveu:
> Replaces lower into upper case characters in comments and debug printks.
> 
> This is an attempt to keep the messages coherent within the designware
> driver.
> 
> Also fixed code style on dw_pcie_irq_domain_free function.
> 
> Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
> Acked-by: Jingoo Han <jingoohan1@gmail.com>
> ---
> Change v1->v2:
>  - Added an extra log description line about code style following Fabio
> Estevam suggestion.
> Change v2->v3:
>  - Nothing changed, just to follow the patch set version.
> Changes v3->v4:
>  - Nothing changed, just to follow the patch set version.
> Changes v4->v5:
>  - Nothing changed, just to follow the patch set version.
> 
>  drivers/pci/dwc/pcie-designware-ep.c   | 16 ++++++++--------
>  drivers/pci/dwc/pcie-designware-host.c | 35 ++++++++++++++++++----------------
>  drivers/pci/dwc/pcie-designware.c      | 22 ++++++++++-----------
>  3 files changed, 38 insertions(+), 35 deletions(-)
> 
> diff --git a/drivers/pci/dwc/pcie-designware-ep.c b/drivers/pci/dwc/pcie-designware-ep.c
> index f07678b..15b22a6 100644
> --- a/drivers/pci/dwc/pcie-designware-ep.c
> +++ b/drivers/pci/dwc/pcie-designware-ep.c
> @@ -75,7 +75,7 @@ static int dw_pcie_ep_inbound_atu(struct dw_pcie_ep *ep, enum pci_barno bar,
>  
>  	free_win = find_first_zero_bit(ep->ib_window_map, ep->num_ib_windows);
>  	if (free_win >= ep->num_ib_windows) {
> -		dev_err(pci->dev, "no free inbound window\n");
> +		dev_err(pci->dev, "No free inbound window\n");
>  		return -EINVAL;
>  	}
>  
> @@ -100,7 +100,7 @@ static int dw_pcie_ep_outbound_atu(struct dw_pcie_ep *ep, phys_addr_t phys_addr,
>  
>  	free_win = find_first_zero_bit(ep->ob_window_map, ep->num_ob_windows);
>  	if (free_win >= ep->num_ob_windows) {
> -		dev_err(pci->dev, "no free outbound window\n");
> +		dev_err(pci->dev, "No free outbound window\n");
>  		return -EINVAL;
>  	}
>  
> @@ -204,7 +204,7 @@ static int dw_pcie_ep_map_addr(struct pci_epc *epc, u8 func_no,
>  
>  	ret = dw_pcie_ep_outbound_atu(ep, addr, pci_addr, size);
>  	if (ret) {
> -		dev_err(pci->dev, "failed to enable address\n");
> +		dev_err(pci->dev, "Failed to enable address\n");
>  		return ret;
>  	}
>  
> @@ -348,21 +348,21 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep)
>  
>  	ret = of_property_read_u32(np, "num-ib-windows", &ep->num_ib_windows);
>  	if (ret < 0) {
> -		dev_err(dev, "unable to read *num-ib-windows* property\n");
> +		dev_err(dev, "Unable to read *num-ib-windows* property\n");
>  		return ret;
>  	}
>  	if (ep->num_ib_windows > MAX_IATU_IN) {
> -		dev_err(dev, "invalid *num-ib-windows*\n");
> +		dev_err(dev, "Invalid *num-ib-windows*\n");
>  		return -EINVAL;
>  	}
>  
>  	ret = of_property_read_u32(np, "num-ob-windows", &ep->num_ob_windows);
>  	if (ret < 0) {
> -		dev_err(dev, "unable to read *num-ob-windows* property\n");
> +		dev_err(dev, "Unable to read *num-ob-windows* property\n");
>  		return ret;
>  	}
>  	if (ep->num_ob_windows > MAX_IATU_OUT) {
> -		dev_err(dev, "invalid *num-ob-windows*\n");
> +		dev_err(dev, "Invalid *num-ob-windows*\n");
>  		return -EINVAL;
>  	}
>  
> @@ -389,7 +389,7 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep)
>  
>  	epc = devm_pci_epc_create(dev, &epc_ops);
>  	if (IS_ERR(epc)) {
> -		dev_err(dev, "failed to create epc device\n");
> +		dev_err(dev, "Failed to create epc device\n");
>  		return PTR_ERR(epc);
>  	}
>  
> diff --git a/drivers/pci/dwc/pcie-designware-host.c b/drivers/pci/dwc/pcie-designware-host.c
> index 6c409079..5a23f78 100644
> --- a/drivers/pci/dwc/pcie-designware-host.c
> +++ b/drivers/pci/dwc/pcie-designware-host.c
> @@ -248,8 +248,10 @@ static void dw_pcie_irq_domain_free(struct irq_domain *domain,
>  	unsigned long flags;
>  
>  	raw_spin_lock_irqsave(&pp->lock, flags);
> +
>  	bitmap_release_region(pp->msi_irq_in_use, data->hwirq,
>  			      order_base_2(nr_irqs));
> +
>  	raw_spin_unlock_irqrestore(&pp->lock, flags);
>  }
>  
> @@ -266,7 +268,7 @@ int dw_pcie_allocate_domains(struct pcie_port *pp)
>  	pp->irq_domain = irq_domain_create_linear(fwnode, pp->num_vectors,
>  					       &dw_pcie_msi_domain_ops, pp);
>  	if (!pp->irq_domain) {
> -		dev_err(pci->dev, "failed to create IRQ domain\n");
> +		dev_err(pci->dev, "Failed to create IRQ domain\n");
>  		return -ENOMEM;
>  	}
>  
> @@ -274,7 +276,7 @@ int dw_pcie_allocate_domains(struct pcie_port *pp)
>  						   &dw_pcie_msi_domain_info,
>  						   pp->irq_domain);
>  	if (!pp->msi_domain) {
> -		dev_err(pci->dev, "failed to create MSI domain\n");
> +		dev_err(pci->dev, "Failed to create MSI domain\n");
>  		irq_domain_remove(pp->irq_domain);
>  		return -ENOMEM;
>  	}
> @@ -301,13 +303,13 @@ void dw_pcie_msi_init(struct pcie_port *pp)
>  	page = alloc_page(GFP_KERNEL);
>  	pp->msi_data = dma_map_page(dev, page, 0, PAGE_SIZE, DMA_FROM_DEVICE);
>  	if (dma_mapping_error(dev, pp->msi_data)) {
> -		dev_err(dev, "failed to map MSI data\n");
> +		dev_err(dev, "Failed to map MSI data\n");
>  		__free_page(page);
>  		return;
>  	}
>  	msi_target = (u64)pp->msi_data;
>  
> -	/* program the msi_data */
> +	/* Program the msi_data */
>  	dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_LO, 4,
>  			    lower_32_bits(msi_target));
>  	dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_HI, 4,
> @@ -335,7 +337,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
>  		pp->cfg0_base = cfg_res->start;
>  		pp->cfg1_base = cfg_res->start + pp->cfg0_size;
>  	} else if (!pp->va_cfg0_base) {
> -		dev_err(dev, "missing *config* reg space\n");
> +		dev_err(dev, "Missing *config* reg space\n");
>  	}
>  
>  	bridge = pci_alloc_host_bridge(0);
> @@ -357,7 +359,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
>  		case IORESOURCE_IO:
>  			ret = pci_remap_iospace(win->res, pp->io_base);
>  			if (ret) {
> -				dev_warn(dev, "error %d: failed to map resource %pR\n",
> +				dev_warn(dev, "Error %d: failed to map resource %pR\n",
>  					 ret, win->res);
>  				resource_list_destroy_entry(win);
>  			} else {
> @@ -391,7 +393,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
>  						pp->cfg->start,
>  						resource_size(pp->cfg));
>  		if (!pci->dbi_base) {
> -			dev_err(dev, "error with ioremap\n");
> +			dev_err(dev, "Error with ioremap\n");
>  			ret = -ENOMEM;
>  			goto error;
>  		}
> @@ -403,7 +405,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
>  		pp->va_cfg0_base = devm_pci_remap_cfgspace(dev,
>  					pp->cfg0_base, pp->cfg0_size);
>  		if (!pp->va_cfg0_base) {
> -			dev_err(dev, "error with ioremap in function\n");
> +			dev_err(dev, "Error with ioremap in function\n");
>  			ret = -ENOMEM;
>  			goto error;
>  		}
> @@ -414,7 +416,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
>  						pp->cfg1_base,
>  						pp->cfg1_size);
>  		if (!pp->va_cfg1_base) {
> -			dev_err(dev, "error with ioremap\n");
> +			dev_err(dev, "Error with ioremap\n");
>  			ret = -ENOMEM;
>  			goto error;
>  		}
> @@ -586,7 +588,7 @@ static int dw_pcie_valid_device(struct pcie_port *pp, struct pci_bus *bus,
>  			return 0;
>  	}
>  
> -	/* access only one slot on each root port */
> +	/* Access only one slot on each root port */
>  	if (bus->number == pp->root_bus_nr && dev > 0)
>  		return 0;
>  
> @@ -652,11 +654,12 @@ void dw_pcie_setup_rc(struct pcie_port *pp)
>  	for (ctrl = 0; ctrl < num_ctrls; ctrl++)
>  		dw_pcie_rd_own_conf(pp, PCIE_MSI_INTR0_ENABLE + (ctrl * 12), 4,
>  				    &pp->irq_status[ctrl]);
> -	/* setup RC BARs */
> +
> +	/* Setup RC BARs */
>  	dw_pcie_writel_dbi(pci, PCI_BASE_ADDRESS_0, 0x00000004);
>  	dw_pcie_writel_dbi(pci, PCI_BASE_ADDRESS_1, 0x00000000);
>  
> -	/* setup interrupt pins */
> +	/* Setup interrupt pins */
>  	dw_pcie_dbi_ro_wr_en(pci);
>  	val = dw_pcie_readl_dbi(pci, PCI_INTERRUPT_LINE);
>  	val &= 0xffff00ff;
> @@ -664,13 +667,13 @@ void dw_pcie_setup_rc(struct pcie_port *pp)
>  	dw_pcie_writel_dbi(pci, PCI_INTERRUPT_LINE, val);
>  	dw_pcie_dbi_ro_wr_dis(pci);
>  
> -	/* setup bus numbers */
> +	/* Setup bus numbers */
>  	val = dw_pcie_readl_dbi(pci, PCI_PRIMARY_BUS);
>  	val &= 0xff000000;
>  	val |= 0x00ff0100;
>  	dw_pcie_writel_dbi(pci, PCI_PRIMARY_BUS, val);
>  
> -	/* setup command register */
> +	/* Setup command register */
>  	val = dw_pcie_readl_dbi(pci, PCI_COMMAND);
>  	val &= 0xffff0000;
>  	val |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
> @@ -683,7 +686,7 @@ void dw_pcie_setup_rc(struct pcie_port *pp)
>  	 * we should not program the ATU here.
>  	 */
>  	if (!pp->ops->rd_other_conf) {
> -		/* get iATU unroll support */
> +		/* Get iATU unroll support */
>  		pci->iatu_unroll_enabled = dw_pcie_iatu_unroll_enabled(pci);
>  		dev_dbg(pci->dev, "iATU unroll: %s\n",
>  			pci->iatu_unroll_enabled ? "enabled" : "disabled");
> @@ -701,7 +704,7 @@ void dw_pcie_setup_rc(struct pcie_port *pp)
>  
>  	/* Enable write permission for the DBI read-only register */
>  	dw_pcie_dbi_ro_wr_en(pci);
> -	/* program correct class for RC */
> +	/* Program correct class for RC */
>  	dw_pcie_wr_own_conf(pp, PCI_CLASS_DEVICE, 2, PCI_CLASS_BRIDGE_PCI);
>  	/* Better disable write permission right after the update */
>  	dw_pcie_dbi_ro_wr_dis(pci);
> diff --git a/drivers/pci/dwc/pcie-designware.c b/drivers/pci/dwc/pcie-designware.c
> index 1b7282e..778c4f7 100644
> --- a/drivers/pci/dwc/pcie-designware.c
> +++ b/drivers/pci/dwc/pcie-designware.c
> @@ -69,7 +69,7 @@ u32 __dw_pcie_read_dbi(struct dw_pcie *pci, void __iomem *base, u32 reg,
>  
>  	ret = dw_pcie_read(base + reg, size, &val);
>  	if (ret)
> -		dev_err(pci->dev, "read DBI address failed\n");
> +		dev_err(pci->dev, "Read DBI address failed\n");
>  
>  	return val;
>  }
> @@ -86,7 +86,7 @@ void __dw_pcie_write_dbi(struct dw_pcie *pci, void __iomem *base, u32 reg,
>  
>  	ret = dw_pcie_write(base + reg, size, val);
>  	if (ret)
> -		dev_err(pci->dev, "write DBI address failed\n");
> +		dev_err(pci->dev, "Write DBI address failed\n");
>  }
>  
>  static u32 dw_pcie_readl_ob_unroll(struct dw_pcie *pci, u32 index, u32 reg)
> @@ -137,7 +137,7 @@ static void dw_pcie_prog_outbound_atu_unroll(struct dw_pcie *pci, int index,
>  
>  		usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
>  	}
> -	dev_err(pci->dev, "outbound iATU is not being enabled\n");
> +	dev_err(pci->dev, "Outbound iATU is not being enabled\n");
>  }
>  
>  void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, int type,
> @@ -180,7 +180,7 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, int type,
>  
>  		usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
>  	}
> -	dev_err(pci->dev, "outbound iATU is not being enabled\n");
> +	dev_err(pci->dev, "Outbound iATU is not being enabled\n");
>  }
>  
>  static u32 dw_pcie_readl_ib_unroll(struct dw_pcie *pci, u32 index, u32 reg)
> @@ -238,7 +238,7 @@ static int dw_pcie_prog_inbound_atu_unroll(struct dw_pcie *pci, int index,
>  
>  		usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
>  	}
> -	dev_err(pci->dev, "inbound iATU is not being enabled\n");
> +	dev_err(pci->dev, "Inbound iATU is not being enabled\n");
>  
>  	return -EBUSY;
>  }
> @@ -284,7 +284,7 @@ int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, int index, int bar,
>  
>  		usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
>  	}
> -	dev_err(pci->dev, "inbound iATU is not being enabled\n");
> +	dev_err(pci->dev, "Inbound iATU is not being enabled\n");
>  
>  	return -EBUSY;
>  }
> @@ -313,16 +313,16 @@ int dw_pcie_wait_for_link(struct dw_pcie *pci)
>  {
>  	int retries;
>  
> -	/* check if the link is up or not */
> +	/* Check if the link is up or not */
>  	for (retries = 0; retries < LINK_WAIT_MAX_RETRIES; retries++) {
>  		if (dw_pcie_link_up(pci)) {
> -			dev_info(pci->dev, "link up\n");
> +			dev_info(pci->dev, "Link up\n");
>  			return 0;
>  		}
>  		usleep_range(LINK_WAIT_USLEEP_MIN, LINK_WAIT_USLEEP_MAX);
>  	}
>  
> -	dev_err(pci->dev, "phy link never came up\n");
> +	dev_err(pci->dev, "Phy link never came up\n");
>  
>  	return -ETIMEDOUT;
>  }
> @@ -351,7 +351,7 @@ void dw_pcie_setup(struct dw_pcie *pci)
>  	if (ret)
>  		lanes = 0;
>  
> -	/* set the number of lanes */
> +	/* Set the number of lanes */
>  	val = dw_pcie_readl_dbi(pci, PCIE_PORT_LINK_CONTROL);
>  	val &= ~PORT_LINK_MODE_MASK;
>  	switch (lanes) {
> @@ -373,7 +373,7 @@ void dw_pcie_setup(struct dw_pcie *pci)
>  	}
>  	dw_pcie_writel_dbi(pci, PCIE_PORT_LINK_CONTROL, val);
>  
> -	/* set link width speed control register */
> +	/* Set link width speed control register */
>  	val = dw_pcie_readl_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL);
>  	val &= ~PORT_LOGIC_LINK_WIDTH_MASK;
>  	switch (lanes) {
> 

Acked-by: Joao Pinto <jpinto@synopsys.com>